[VOL-2282] Split out ofagent-py into it's own repo

Brought over from voltha-go commit: 006dc84ee1977cc47990439823c539ac258c34a1

Change-Id: I4355d33ddd8996d0be1a50263f270268c8b11533
diff --git a/ofagent/protos/README b/ofagent/protos/README
new file mode 100644
index 0000000..65c5e93
--- /dev/null
+++ b/ofagent/protos/README
@@ -0,0 +1 @@
+Protoc-generated *.py files are populated here from Voltha via make