diff --git a/vendor/github.com/json-iterator/go/any.go b/vendor/github.com/json-iterator/go/any.go
new file mode 100644
index 0000000..f6b8aea
--- /dev/null
+++ b/vendor/github.com/json-iterator/go/any.go
@@ -0,0 +1,325 @@
+package jsoniter
+
+import (
+	"errors"
+	"fmt"
+	"github.com/modern-go/reflect2"
+	"io"
+	"reflect"
+	"strconv"
+	"unsafe"
+)
+
+// Any generic object representation.
+// The lazy json implementation holds []byte and parse lazily.
+type Any interface {
+	LastError() error
+	ValueType() ValueType
+	MustBeValid() Any
+	ToBool() bool
+	ToInt() int
+	ToInt32() int32
+	ToInt64() int64
+	ToUint() uint
+	ToUint32() uint32
+	ToUint64() uint64
+	ToFloat32() float32
+	ToFloat64() float64
+	ToString() string
+	ToVal(val interface{})
+	Get(path ...interface{}) Any
+	Size() int
+	Keys() []string
+	GetInterface() interface{}
+	WriteTo(stream *Stream)
+}
+
+type baseAny struct{}
+
+func (any *baseAny) Get(path ...interface{}) Any {
+	return &invalidAny{baseAny{}, fmt.Errorf("GetIndex %v from simple value", path)}
+}
+
+func (any *baseAny) Size() int {
+	return 0
+}
+
+func (any *baseAny) Keys() []string {
+	return []string{}
+}
+
+func (any *baseAny) ToVal(obj interface{}) {
+	panic("not implemented")
+}
+
+// WrapInt32 turn int32 into Any interface
+func WrapInt32(val int32) Any {
+	return &int32Any{baseAny{}, val}
+}
+
+// WrapInt64 turn int64 into Any interface
+func WrapInt64(val int64) Any {
+	return &int64Any{baseAny{}, val}
+}
+
+// WrapUint32 turn uint32 into Any interface
+func WrapUint32(val uint32) Any {
+	return &uint32Any{baseAny{}, val}
+}
+
+// WrapUint64 turn uint64 into Any interface
+func WrapUint64(val uint64) Any {
+	return &uint64Any{baseAny{}, val}
+}
+
+// WrapFloat64 turn float64 into Any interface
+func WrapFloat64(val float64) Any {
+	return &floatAny{baseAny{}, val}
+}
+
+// WrapString turn string into Any interface
+func WrapString(val string) Any {
+	return &stringAny{baseAny{}, val}
+}
+
+// Wrap turn a go object into Any interface
+func Wrap(val interface{}) Any {
+	if val == nil {
+		return &nilAny{}
+	}
+	asAny, isAny := val.(Any)
+	if isAny {
+		return asAny
+	}
+	typ := reflect2.TypeOf(val)
+	switch typ.Kind() {
+	case reflect.Slice:
+		return wrapArray(val)
+	case reflect.Struct:
+		return wrapStruct(val)
+	case reflect.Map:
+		return wrapMap(val)
+	case reflect.String:
+		return WrapString(val.(string))
+	case reflect.Int:
+		if strconv.IntSize == 32 {
+			return WrapInt32(int32(val.(int)))
+		}
+		return WrapInt64(int64(val.(int)))
+	case reflect.Int8:
+		return WrapInt32(int32(val.(int8)))
+	case reflect.Int16:
+		return WrapInt32(int32(val.(int16)))
+	case reflect.Int32:
+		return WrapInt32(val.(int32))
+	case reflect.Int64:
+		return WrapInt64(val.(int64))
+	case reflect.Uint:
+		if strconv.IntSize == 32 {
+			return WrapUint32(uint32(val.(uint)))
+		}
+		return WrapUint64(uint64(val.(uint)))
+	case reflect.Uintptr:
+		if ptrSize == 32 {
+			return WrapUint32(uint32(val.(uintptr)))
+		}
+		return WrapUint64(uint64(val.(uintptr)))
+	case reflect.Uint8:
+		return WrapUint32(uint32(val.(uint8)))
+	case reflect.Uint16:
+		return WrapUint32(uint32(val.(uint16)))
+	case reflect.Uint32:
+		return WrapUint32(uint32(val.(uint32)))
+	case reflect.Uint64:
+		return WrapUint64(val.(uint64))
+	case reflect.Float32:
+		return WrapFloat64(float64(val.(float32)))
+	case reflect.Float64:
+		return WrapFloat64(val.(float64))
+	case reflect.Bool:
+		if val.(bool) == true {
+			return &trueAny{}
+		}
+		return &falseAny{}
+	}
+	return &invalidAny{baseAny{}, fmt.Errorf("unsupported type: %v", typ)}
+}
+
+// ReadAny read next JSON element as an Any object. It is a better json.RawMessage.
+func (iter *Iterator) ReadAny() Any {
+	return iter.readAny()
+}
+
+func (iter *Iterator) readAny() Any {
+	c := iter.nextToken()
+	switch c {
+	case '"':
+		iter.unreadByte()
+		return &stringAny{baseAny{}, iter.ReadString()}
+	case 'n':
+		iter.skipThreeBytes('u', 'l', 'l') // null
+		return &nilAny{}
+	case 't':
+		iter.skipThreeBytes('r', 'u', 'e') // true
+		return &trueAny{}
+	case 'f':
+		iter.skipFourBytes('a', 'l', 's', 'e') // false
+		return &falseAny{}
+	case '{':
+		return iter.readObjectAny()
+	case '[':
+		return iter.readArrayAny()
+	case '-':
+		return iter.readNumberAny(false)
+	case 0:
+		return &invalidAny{baseAny{}, errors.New("input is empty")}
+	default:
+		return iter.readNumberAny(true)
+	}
+}
+
+func (iter *Iterator) readNumberAny(positive bool) Any {
+	iter.startCapture(iter.head - 1)
+	iter.skipNumber()
+	lazyBuf := iter.stopCapture()
+	return &numberLazyAny{baseAny{}, iter.cfg, lazyBuf, nil}
+}
+
+func (iter *Iterator) readObjectAny() Any {
+	iter.startCapture(iter.head - 1)
+	iter.skipObject()
+	lazyBuf := iter.stopCapture()
+	return &objectLazyAny{baseAny{}, iter.cfg, lazyBuf, nil}
+}
+
+func (iter *Iterator) readArrayAny() Any {
+	iter.startCapture(iter.head - 1)
+	iter.skipArray()
+	lazyBuf := iter.stopCapture()
+	return &arrayLazyAny{baseAny{}, iter.cfg, lazyBuf, nil}
+}
+
+func locateObjectField(iter *Iterator, target string) []byte {
+	var found []byte
+	iter.ReadObjectCB(func(iter *Iterator, field string) bool {
+		if field == target {
+			found = iter.SkipAndReturnBytes()
+			return false
+		}
+		iter.Skip()
+		return true
+	})
+	return found
+}
+
+func locateArrayElement(iter *Iterator, target int) []byte {
+	var found []byte
+	n := 0
+	iter.ReadArrayCB(func(iter *Iterator) bool {
+		if n == target {
+			found = iter.SkipAndReturnBytes()
+			return false
+		}
+		iter.Skip()
+		n++
+		return true
+	})
+	return found
+}
+
+func locatePath(iter *Iterator, path []interface{}) Any {
+	for i, pathKeyObj := range path {
+		switch pathKey := pathKeyObj.(type) {
+		case string:
+			valueBytes := locateObjectField(iter, pathKey)
+			if valueBytes == nil {
+				return newInvalidAny(path[i:])
+			}
+			iter.ResetBytes(valueBytes)
+		case int:
+			valueBytes := locateArrayElement(iter, pathKey)
+			if valueBytes == nil {
+				return newInvalidAny(path[i:])
+			}
+			iter.ResetBytes(valueBytes)
+		case int32:
+			if '*' == pathKey {
+				return iter.readAny().Get(path[i:]...)
+			}
+			return newInvalidAny(path[i:])
+		default:
+			return newInvalidAny(path[i:])
+		}
+	}
+	if iter.Error != nil && iter.Error != io.EOF {
+		return &invalidAny{baseAny{}, iter.Error}
+	}
+	return iter.readAny()
+}
+
+var anyType = reflect2.TypeOfPtr((*Any)(nil)).Elem()
+
+func createDecoderOfAny(ctx *ctx, typ reflect2.Type) ValDecoder {
+	if typ == anyType {
+		return &directAnyCodec{}
+	}
+	if typ.Implements(anyType) {
+		return &anyCodec{
+			valType: typ,
+		}
+	}
+	return nil
+}
+
+func createEncoderOfAny(ctx *ctx, typ reflect2.Type) ValEncoder {
+	if typ == anyType {
+		return &directAnyCodec{}
+	}
+	if typ.Implements(anyType) {
+		return &anyCodec{
+			valType: typ,
+		}
+	}
+	return nil
+}
+
+type anyCodec struct {
+	valType reflect2.Type
+}
+
+func (codec *anyCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	panic("not implemented")
+}
+
+func (codec *anyCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	obj := codec.valType.UnsafeIndirect(ptr)
+	any := obj.(Any)
+	any.WriteTo(stream)
+}
+
+func (codec *anyCodec) IsEmpty(ptr unsafe.Pointer) bool {
+	obj := codec.valType.UnsafeIndirect(ptr)
+	any := obj.(Any)
+	return any.Size() == 0
+}
+
+type directAnyCodec struct {
+}
+
+func (codec *directAnyCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
+	*(*Any)(ptr) = iter.readAny()
+}
+
+func (codec *directAnyCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
+	any := *(*Any)(ptr)
+	if any == nil {
+		stream.WriteNil()
+		return
+	}
+	any.WriteTo(stream)
+}
+
+func (codec *directAnyCodec) IsEmpty(ptr unsafe.Pointer) bool {
+	any := *(*Any)(ptr)
+	return any.Size() == 0
+}