[7/7] Telephony: 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/
TelephonyProvider: https://gerrit.omnirom.org/#/c/5012/

Change-Id: I546b497f6abf1f5f832c550438686d0fe60d0570

[7/7] Telephony: Blacklist permission

Change-Id: Ic33c6589707e96135d3d148e339ca4f2035d06ab

Conflicts:

	res/values-cs/strings_custom.xml