chore: add split repo templates (#2)

* chore: add split repo templates

* chore: remove blacken
diff --git a/MANIFEST.in b/MANIFEST.in
index 1fbc0d0..cd011be 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,3 +1,6 @@
+# Generated by synthtool. DO NOT EDIT!
 include README.rst LICENSE
+recursive-include google *.json *.proto
 recursive-include tests *
-global-exclude *.pyc __pycache__
+global-exclude *.py[co]
+global-exclude __pycache__