MULE-6794: CXF WS-Security - SecurityContext is not set after successful authentication
_ MuleSecurityManagerCallbackHandler now saves the authentication info in the session context
(cherry picked from commit 51275dc4367ce8a1e18bc9131dc97e89e5caf4cf)
(cherry picked from commit 50676ee2def47dbb6ee149bbc6937a78c83cf323)