[6/7] TelephonyProvider: Blacklist support

Base: https://gerrit.omnirom.org/#/c/5668/
telephony: https://gerrit.omnirom.org/#/c/6347/
InCallUI: https://gerrit.omnirom.org/#/c/5669/
Mms: https://gerrit.omnirom.org/#/c/5671/
Settings: https://gerrit.omnirom.org/#/c/5011/
Telephony: https://gerrit.omnirom.org/#/c/5010/

Change-Id: I8941548217c36ca702791fc34e3e044125eb46ae