Added support for Allow-Address-Pairs feature

Added support for feature called Allow-Address-Pairs introduced in
Ie73b3886c5be8e1fc4ade86a0cfb854267f345ac

Change-Id: I29f3555e55df6ad6ba41e7ec503cd05ad2a162df
Implements: blueprint allowed-address-pairs
Merge "Added support for Allow-Address-Pairs feature"