Changes

rcptt: upgrade RCPTT to 2.5.3 and update integration with maven

- introduce maven profile run-rcptt to run RCPTT tests. To run only
RCPTT tests execute:
mvn clean install -Drun-rcptt=true -Dskip-short-tc-ui-tests=true
-Dskip-long-tc-ui-tests=true -Dskip-tc-core-tests=true

Change-Id: I0b8eae4bdabdbcc3306e00b1650ef06a42681008
Signed-off-by: Bernd Hufmann <bernd.hufmann@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/c/tracecompass/org.eclipse.tracecompass/+/193552
Tested-by: Trace Compass Bot <tracecompass-bot@eclipse.org>
Tested-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
Reviewed-by: Matthew Khouzam <matthew.khouzam@ericsson.com>