Adds a README and canonical example for treble_manifest_split. am: 70e8444410 am: 18065746ff Original change: https://android-review.googlesource.com/c/platform/tools/treble/+/1689267 Change-Id: Ib6b04dec8c522ec85206c86daa49d568d851f750
https://android-developers.googleblog.com/2017/05/here-comes-treble-modular-base-for.html