Rename maven modules to mirror directory structure

Rename maven modules to mirror directory structure

The naming of Maven modules in drools-applications was not
aligned with the directory structure in the git repository
of drools-applications. Therefore it was difficult to
see the strucutre of the repository in Eclipse and other
IDEs. This change amends the Maven module IDs to
reflect the repository directory structure.

This patch reset fixes the previos patch set, where many
references to maven modules internally in drools-applciations
were missed. See also changes in engine and docker repos.

Updated to reflect repo directory structure in maven
artifact groups.

Issue-ID: POLICY-238
Change-Id: I8ab1a7ecdb664045222bbbfda269135e3e449109
Signed-off-by: liamfallon <liam.fallon@ericsson.com>