VOL-3419: Replicate voltha flows in openolt agent
- The scale-tester-app will adhere to new openolt.proto interface (version 4.0.2)
and will pass necessary information for openolt-agent to replicate the flows.
- upgrade to voltha-lib-go version 4.0.0

Change-Id: I9d862929ae8ac4468d4e93096f8cd8e16f26ec93
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 1e2d7e2..9ebda8d 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -37,15 +37,44 @@
 github.com/mitchellh/go-homedir
 # github.com/mitchellh/mapstructure v1.1.2
 github.com/mitchellh/mapstructure
-# github.com/opencord/voltha-lib-go/v3 v3.0.20
-github.com/opencord/voltha-lib-go/v3/pkg/db
-github.com/opencord/voltha-lib-go/v3/pkg/db/kvstore
-github.com/opencord/voltha-lib-go/v3/pkg/log
-github.com/opencord/voltha-lib-go/v3/pkg/ponresourcemanager
-github.com/opencord/voltha-lib-go/v3/pkg/techprofile
-# github.com/opencord/voltha-protos/v3 v3.2.6
-github.com/opencord/voltha-protos/v3/go/openolt
-github.com/opencord/voltha-protos/v3/go/tech_profile
+# github.com/opencord/voltha-lib-go/v4 v4.0.0
+github.com/opencord/voltha-lib-go/v4/pkg/db
+github.com/opencord/voltha-lib-go/v4/pkg/db/kvstore
+github.com/opencord/voltha-lib-go/v4/pkg/log
+github.com/opencord/voltha-lib-go/v4/pkg/ponresourcemanager
+github.com/opencord/voltha-lib-go/v4/pkg/techprofile
+# github.com/opencord/voltha-protos/v4 v4.0.2
+github.com/opencord/voltha-protos/v4/go/common
+github.com/opencord/voltha-protos/v4/go/ext/config
+github.com/opencord/voltha-protos/v4/go/openolt
+github.com/opencord/voltha-protos/v4/go/tech_profile
+# github.com/opentracing/opentracing-go v1.1.0
+github.com/opentracing/opentracing-go
+github.com/opentracing/opentracing-go/ext
+github.com/opentracing/opentracing-go/log
+# github.com/pkg/errors v0.8.1
+github.com/pkg/errors
+# github.com/uber/jaeger-client-go v2.23.1+incompatible
+github.com/uber/jaeger-client-go
+github.com/uber/jaeger-client-go/config
+github.com/uber/jaeger-client-go/internal/baggage
+github.com/uber/jaeger-client-go/internal/baggage/remote
+github.com/uber/jaeger-client-go/internal/reporterstats
+github.com/uber/jaeger-client-go/internal/spanlog
+github.com/uber/jaeger-client-go/internal/throttler
+github.com/uber/jaeger-client-go/internal/throttler/remote
+github.com/uber/jaeger-client-go/log
+github.com/uber/jaeger-client-go/rpcmetrics
+github.com/uber/jaeger-client-go/thrift
+github.com/uber/jaeger-client-go/thrift-gen/agent
+github.com/uber/jaeger-client-go/thrift-gen/baggage
+github.com/uber/jaeger-client-go/thrift-gen/jaeger
+github.com/uber/jaeger-client-go/thrift-gen/sampling
+github.com/uber/jaeger-client-go/thrift-gen/zipkincore
+github.com/uber/jaeger-client-go/transport
+github.com/uber/jaeger-client-go/utils
+# github.com/uber/jaeger-lib v2.2.0+incompatible
+github.com/uber/jaeger-lib/metrics
 # go.etcd.io/etcd v0.0.0-20190930204107-236ac2a90522
 go.etcd.io/etcd/auth/authpb
 go.etcd.io/etcd/clientv3