Changes

Tmf: Fix insecure configuration advice by SonarCloud

Replace all e.printStackTrace() by Activator.logError(). Related to
[1]'s HotSpots issue.

[1]https://sonarcloud.io/organizations/eclipse/rules?open=java%3AS4507&rule_key=java%3AS4507

Change-Id: Ia93559385215a9c7c335cfbe63205cd0c0c3cfa9
Signed-off-by: Estelle Foisy <estelle.foisy@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/c/tracecompass/org.eclipse.tracecompass/+/200854
Reviewed-by: Marco Miller <marco.miller@ericsson.com>
Reviewed-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
Tested-by: Trace Compass Bot <tracecompass-bot@eclipse.org>
Tested-by: Matthew Khouzam <matthew.khouzam@ericsson.com>