Revert "Revert "Move message blacklist to framework (1/3).""

This reverts commit 87c10025ecf3022e0c7cbd84ed74983f18eaac1a.
Revert "Revert "Store phone blacklist in content provider (1/4)""

This reverts commit b9f4ee36f225978d58b06b073dd3614d56183a93.