Adds updates including compute [(#2436)](GoogleCloudPlatform/python-docs-samples#2436)

* Adds updates including compute

* Python 2 compat pytest

* Fixing weird \r\n issue from GH merge

* Put asset tests back in

* Re-add pod operator test

* Hack parameter for k8s pod operator

Author: gguuss

samples/snippets/cloud-client/requirements.txt

@@ -1 +1 @@
-google-cloud-datacatalog==0.1.0
+google-cloud-datacatalog==0.3.0