Stats: track how frequently contact images are present incall

For retail devices (and installer builds), introduce tags to be read
by a separate, additional, package.

This will not be read or collected in any community (nightly/M/etc) or
self-built build.

Change-Id: I7f52f18a53ade50e0274af633cb7c26566332ee7
MSIM: Fix fragment class names

Change-Id: Ie85f68b6f8a1bb852578872a824fdff6f1474d60