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/docker/Dockerfile.base b/docker/Dockerfile.base
index 3e6098c..1a22cd9 100644
--- a/docker/Dockerfile.base
+++ b/docker/Dockerfile.base
@@ -10,16 +10,11 @@
 RUN git clone https://github.com/googleapis/googleapis.git /usr/local/include/googleapis
 
 # Prepare directory structure
-RUN ["mkdir", "-p", "/src", "src/protos"]
+RUN ["mkdir", "-p", "/src"]
 RUN ["mkdir", "-p", "$GOPATH/src", "$GOPATH/pkg", "$GOPATH/bin"]
-RUN ["mkdir", "-p", "$GOPATH/src/github.com/opencord/voltha/protos/go"]
+RUN ["mkdir", "-p", "$GOPATH/src/github.com/opencord/voltha-go"]
 RUN ["mkdir", "-p", "/share"]
 
-# Install golang protobuf
-#RUN go get github.com/golang/protobuf/protoc-gen-go
-#RUN go get google.golang.org/genproto/googleapis/rpc/status
-#RUN go get google.golang.org/grpc/binarylog/grpc_binarylog_v1
-
 # Copy files
 #ADD rw_core $GOPATH/src/github.com/opencord/voltha-go/rw_core
 #ADD common $GOPATH/src/github.com/opencord/voltha-go/common
@@ -28,11 +23,6 @@
 ADD vendor $GOPATH/src/github.com/opencord/voltha-go/vendor
 #ADD afrouter $GOPATH/src/github.com/opencord/voltha-go/afrouter
 
-
-# Copy required proto files
-# ... VOLTHA proos
-ADD protos/*.proto /src/protos/
-ADD protos/scripts/* /src/protos/
 ADD afrouter/arouter.json /src
 
 #
@@ -41,13 +31,4 @@
 
 #RUN ls -ltrR /go/src/github.com/opencord/voltha-go
 
-# Install golang protobuf
-#RUN go get github.com/golang/protobuf/protoc-gen-go
-#RUN go get google.golang.org/genproto/googleapis/rpc/status
-#RUN go get google.golang.org/grpc/binarylog/grpc_binarylog_v1
-RUN go install ./vendor/github.com/golang/protobuf/protoc-gen-go
-
-# Compile protobuf files
-RUN sh /src/protos/build_protos.sh /src/protos
-
 VOLUME /share