Merge platform/external/python/google-auth-library-python v2.3.3

Inital commit of google-auth-library-python 2.3.3 with history

Added:
- Android.bp
- MODULE_LICENSE_APACHE2
- NOTICE
- METADATA

Bug: 154879379
Bug: 209653360
Test: None

Change-Id: Id05bf27857ef5ce5ec9010fc0507acc9b994530f