Add OperatorReplace api to framework:

this converts the operator number into carrier name, 2 API

this one load once if the number is the same through the life span of the SIM.
public static String operatorReplace(String response)

This one is for loop based sisuation, doesn't lazy load the selective-spn.xml,

public String unOptimizedOperatorReplace(String response)

Change-Id: I4273e6091df8c0e59ca86ac6d69bd8e40e9c4d44