b/f:test: fix replacesMapper test for master version
auth: prevent side-channel (timing) attack on UAS auth
sbc: SIP UAS authentication for B leg (uas_auth_bleg_enabled)

Notes:
- All of those profile options must be set
 uas_auth_bleg_realm
 uas_auth_bleg_user
 uas_auth_bleg_pwd

- On realm mismatch, it is not authenticated

- URI is not checked against the Authorization URI

Conflicts:

	apps/sbc/SBC.cpp
	apps/sbc/SBC.h
	apps/sbc/SBCCallProfile.cpp
	apps/sbc/SBCCallProfile.h
	apps/sbc/etc/transparent.sbcprofile.conf

Conflicts:

	apps/sbc/SBC.cpp
	apps/sbc/SBC.h
	apps/sbc/SBCCallProfile.cpp
	apps/sbc/SBCCallProfile.h
	apps/sbc/etc/transparent.sbcprofile.conf