tmf: add trace type ID property to be displayed in Properties view

tmf: add trace type ID property to be displayed in Properties view

This information is needed when creating XML analysis. User have no
other way to know the ID (unless looking into Trace Compass source
code)

Change-Id: I7463c84ed0e7b480ba52984e485fe7354ed4d2cd
Signed-off-by: Bernd Hufmann <Bernd.Hufmann@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/72082
Reviewed-by: Hudson CI
Reviewed-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
Tested-by: Matthew Khouzam <matthew.khouzam@ericsson.com>