Add column for tracking when a theme was installed

Change-Id: Ie8d13aaaf968c21d765062ae598fdac62caa7b2d
(cherry picked from commit 38b3ec9e02b6ef3950dfdf7ded031c9bee3e26c7)
Heads up: option to disable in lockscreen (1/2)

Change-Id: I6d191528362535f5965d4e0960f4f5631da01a3e
(cherry picked from commit 56e1d69ccd481b8bf3fdaeabbf733da346e8aec1)