Add in enum34 1.1.6 (58c4cd7)

This is a mercurial repo, d/led zip of src:
https://bitbucket.org/stoneleaf/enum34/get/1.1.6.zip

Also added in misc files (Android.bp, METADATA, NOTICE, etc)
And add myself and guangzhu to OWNERS.

Exempt-From-Owner-Approval:

Bug: 122778810
Test: None
Change-Id: I2dd62b9938f154fbe425da0475988ed1b99e6707
13 files changed