CLONE port on trunk NXP-1972: Allow reuse of Web Session in JAXWS based WS

Currently the JAXWS WS accepts only "user/pass" authentication. This is unacceptable.
The goal: allow the Web Session work over the WS.
The main idea is to establish the JAAS context for the calls to WS already containing JSESSION or other means. For the session empty, the WS will do the job by itself.