AS7/Wildfly support and server dependencies pom

* created a "server-dependencies" pom project, containing the CORE dependencies of the UPS
* renamed ups-server to ups-as7
* added wildfly project

This allows us to release two different UPS server WAR files to Maven Central, for -as7(EAP) and wildfly. (This does not work when executing -Pwildfly)

The main dependencies are captured in the new 'pom' file. Idea taken from keycloak, after @abstractj told me about it.  The main diff, on the dependencies is only on the actual adapter.


@danbev @abstractj @lfryc you mind testing and reviewing this ?