Using the OMCI-Sim library to respond to OMCI messages

Change-Id: I8a15f9dcb95fe8ce7b5f524d673d7c83882b6401
diff --git a/Makefile b/Makefile
index cfb0fc7..8e34d12 100644
--- a/Makefile
+++ b/Makefile
@@ -28,7 +28,7 @@
 protos: api/bbsim/bbsim.pb.go # @HELP Build proto files
 
 build: protos # @HELP Build the binary
-	GO111MODULE=on go build -i -v \
+	GO111MODULE=on go build -i -v -mod vendor \
 	-ldflags "-X main.buildTime=$(shell date +”%Y/%m/%d-%H:%M:%S”) \
 		-X main.commitHash=$(shell git log --pretty=format:%H -n 1) \
 		-X main.gitStatus=${GIT_STATUS} \