Split out drawable to separate from dashboard drawable

The Filter Notifications view has an action menu item which uses
the same drawable reference as the dashboard category. This can
create a conflicting instance for themes where the colors or style
do not line up correctly. By creating a new VD, we can make sure
that the different views are themed accurately & separately for
maximum themage (I made that word up).

Change-Id: If7ddf51489a741f6b9564f07f7034f3f9824d352
Ticket: CYNGNOS-2134