add google play services

 * used later

Change-Id: If3fbb0260ce68dcb1701d38e5d16ff8e00a47830
add pollfish

Change-Id: I052ba3a02e62899c11bbd52a89163420659bc48b
bump versioncode

Change-Id: I44e8e85a546920ef71f9cb431ba8d5fb11a098d1
add privacy fragment and add pollfish policy

Change-Id: I5eb8048ab82bce1d08904fb6459e5c7c2b8783a6
allow to toggle pollfish on and off, deactivate by default

Change-Id: Ic7109ba2593279d38a910e5fb031c265bb2b7a70
prebuilt api key library

Change-Id: Ie75ed3e73c78f0d50fa216d9672e24b5da264b27