Implementing Compat class for Filtering

+ FilteredNumberCompat contains the logic needed to switch between
the Dialer implemented number filtering and the new number filtering.
+ Direct uses of the Dialer Filtering code should be replaced to use
the fields in this class

Bug=26664600

Change-Id: I42db3da4b5ed124a88488713f56ccab7b2290309
4 files changed