Adding google-services.json for release builds.
Adding google-services.json for release builds.

Change-Id: Id5cf7b16274bb46b00d0c85f5a9c0694f6c09bec

jarekankowski/iosched,jarekankowski/iosched,WeRockStar/iosched,WeRockStar/iosched,google/iosched,jarekankowski/iosched,google/iosched,google/iosched,WeRockStar/iosched