Add Karaf build profile

Add Karaf build profile

Project local Karaf distros are handy for devs to test their work
however is unneeded by autorelease builds and should not be released
as part of the Simultanious Release. Add a profile that is active by
default so that default behaviour is unchanged however allows the
autorelease project to disable building this module.

Issue: RELENG-86
Change-Id: I0b1d31b051223a8a1c22494da08bd72eb585198b
Signed-off-by: Thanh Ha <thanh.ha@linuxfoundation.org>