Add support CallBarring.

Add support for CallBarring in the Phone App
CallBarring now supports the following
-Barr All Outgoing Calls
-Barr Outgoing International Calls
-Barr Outgoing International Calls except to Home Country
-Barr All Incoming Calls
-Barr Incoming Calls when Roaming outside the home country
-All Barring services

CRs-Fixed: 520315

Conflicts:
	src/java/com/android/internal/telephony/PhoneBase.java
	src/java/com/android/internal/telephony/PhoneProxy.java

Change-Id: I6b69aaa422a06a8a839537ef658f24af32ace52c