Adding support for logging wallpaper container info.

Test: https://paste.googleplex.com/5350571797118976 shows logging carousel size and index of wallpaper tapped. If the wallpaper is a live wallpaper, we also log its application info.
Bug: 188222480
Change-Id: I6dd7ac20af7afd675d8a886d5b838263680f773e
Merged-In: I6dd7ac20af7afd675d8a886d5b838263680f773e