STL: func core tests not working due to glassfish support snapshot not b...

Build pipeline is broken due to repose-func-core requiring a Repose dependency on glassfish-support, but this snapshot did not get built and installed on the jenkins slave that is running repose-func-core.

In order to simplify the build dependencies for functional test support, created a directory under repose-aggregator called functional-tests and moving the 3 directories from external/testing to this new dir.  This allows me to build and install all modules in functional-tests before running any of the spock tests.