VOL-1460 Updated core to use voltha-protos instead of local protos
Moved protos to python directory in order to maintain functionaly of containers built there.
Added capability to do local builds of protos
Added instructions on running dep ensure for getting protos.
Updated github.com/golang/protobuf version to v1.3.1

Change-Id: Ia6ef55f07f0d5dcb5b750d7c37b21b71db85bfc4
diff --git a/python/protos/afrouter.proto b/python/protos/afrouter.proto
new file mode 100644
index 0000000..ee968ad
--- /dev/null
+++ b/python/protos/afrouter.proto
@@ -0,0 +1,45 @@
+// protoc -I echo/ echo/*.proto --go_out=plugins=grpc:echo
+
+syntax = "proto3";
+
+option go_package = "github.com/opencord/voltha-protos/go/afrouter";
+
+package afrouter;
+
+service Configuration {
+	rpc SetConnection (Conn) returns (Result) {}
+	rpc SetAffinity(Affinity) returns (Result) {}
+	rpc GetGoroutineCount(Empty) returns (Count) {}
+}
+
+message Empty {
+}
+
+message Count {
+	uint32 count = 1;
+}
+
+message Result {
+	bool success = 1;
+	string error = 2;
+	string info = 3;
+}
+
+message Conn {
+	string server = 1;
+	string pkg = 2;
+	string svc = 3;
+	string cluster = 4;
+	string backend = 5;
+	string connection = 6;
+	string addr = 7;
+	uint64 port = 8;
+}
+
+message Affinity {
+	string router = 1;
+	string route = 2;
+	string cluster = 3;
+	string backend = 4;
+	string id = 5;
+}