Due to #804

Test: ./run_all_tests.sh

* Initial commit ViewBindingSample

* Adds first version of the sample and migrates gradle files to our versioning system

* Updates copyright headers and adds simple UI test

* Adds View Binding sample to circleCI config

* Typing in the wrong window apparently

* Reverts to API 28 for now

* Adds bind API to View Binding sample

* LiveData sample

* Removes internal script

* Adds call to super.onActivityResult to fix broken build

* Bumps testing versions and fixes NavBasicSample dependencies

* Fixes testing versions

Change-Id: Iae8e663bd03268e619201ee36afeea22fa94697a

Change-Id: If697ab08f995829bf66767d56348e75a430a50d0

Circle CI improvements

unit tests, lint checks, artifacts, gradle and java opts from Tivi

Adds CircleCI v2 to 8/10 samples

This CL adds a circle yml file to run tests of all build files.
It unfortunately uses v1 so it is very slow. Emulator may also
lock during tests, which i'm trying to mitigate in the runner
shell script but has no guaratee. I didn't want to change our
UI tests to unlock the device but we can do that as well.