tmf: Add open trace with trace type hint

tmf: Add open trace with trace type hint

Allows for better automation of trace opening if
you know your trace type in advance.

Change-Id: I5a9c0213ee54df921b3008cc7bdd99cf1da8f5ff
Signed-off-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/17865
Reviewed-by: Bernd Hufmann <bernd.hufmann@ericsson.com>
IP-Clean: Bernd Hufmann <bernd.hufmann@ericsson.com>
Tested-by: Bernd Hufmann <bernd.hufmann@ericsson.com>
Tested-by: Hudson CI