Telephony: Generic Blacklist support (5 of 5)

Change-Id: Ida51f9b1aa1f11b6179f623ede89c314d3f92f65

Move message blacklist to framework (1/3).

Change-Id: I321e3a3c40dd49772978258e8a27208868a22332

Telephony : Ensure private numbers are blocked if block unknown numbers is enabled

When a private number comes through, its value is either null or empty.
Make sure that if the user has blocking of unknown numbers enabled, that its blocked

Change-Id: Ica629215f584572c701fd10464d8828c3f099694

Blacklist : Add helper methods

issue-id: CYNGNOS-980

Change-Id: I806b70da553adad9e9e03a39c63049ae2c73d7fa

Store phone blacklist in content provider (1/4)

Change-Id: I9dafdb3e10bd2a71695c2a02cc483c594d86c543