set up reclass for packaging on pypi
diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 0000000..1c1accc
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1,12 @@
+# Include the license and changelog
+include LICENSE ChangeLog.rst
+# Exclude development tooling
+exclude Makefile requirements.txt .pylintrc reclass.py
+# Exclude testing infra
+exclude run_tests.py
+prune reclass/datatypes/tests
+prune reclass/storage/tests
+prune reclass/utils/tests
+# Exclude "source only" content
+prune doc
+prune examples