VOL-1460
I need to test out a method sharing protos.
In particular, it is the protos under the go/folder

Plus some updates to the build process.

Change-Id: I5878354fd1ef136d4f0a019b22de96afdb0205e1
diff --git a/go/schema/schema.proto b/go/schema/schema.proto
new file mode 100644
index 0000000..2edd85a
--- /dev/null
+++ b/go/schema/schema.proto
@@ -0,0 +1,40 @@
+syntax = "proto3";
+
+option go_package = "github.com/opencord/voltha-protos/go/schema";
+
+package schema;
+
+import "google/api/annotations.proto";
+import "google/protobuf/empty.proto";
+
+// Contains the name and content of a *.proto file
+message ProtoFile {
+    string file_name = 1;  // name of proto file
+    string proto = 2;  // content of proto file
+    bytes descriptor = 3;  // compiled descriptor for proto (zlib compressed)
+}
+
+// Proto files and compiled descriptors for this interface
+message Schemas {
+
+    // Proto files
+    repeated ProtoFile protos = 1;
+
+    // Proto file name from which swagger.json shall be generated
+    string swagger_from = 2;
+
+    // Proto file name from which yang schemas shall be generated
+    string yang_from = 3;
+}
+
+// Schema services
+service SchemaService {
+
+    // Return active grpc schemas
+    rpc GetSchema(google.protobuf.Empty) returns (Schemas) {
+        option (google.api.http) = {
+            get: "/schema"
+        };
+    }
+
+}