Major Refactoring on plyxproto

- Reorganized code and removed copy of ply
- Reformatted code to be closer to PEP8
- Updated to Python3 compatibility
- Added tox test runner and created test cases
diff --git a/.gitreview b/.gitreview
new file mode 100644
index 0000000..fe8974a
--- /dev/null
+++ b/.gitreview
@@ -0,0 +1,5 @@
+[gerrit]
+host=gerrit.opencord.org
+port=29418
+project=plyxproto.git
+defaultremote=origin