tmf.xml: Bug 500195. Modify initial state behavior

tmf.xml: Bug 500195. Modify initial state behavior

Fix Bug 500195 and add a new initialState element. This element acts as
a real state and support conditions and actions. Also, these conditions
are only verified  for the pending scenario and the pending scenario do
will ignore the preconditions.

Change-Id: I520f4129f9c65eee9299d5b08f380e07b2b78d0f
Signed-off-by: Jean-Christian Kouame <jean-christian.kouame@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/79439
Reviewed-by: Hudson CI
Reviewed-by: Bernd Hufmann <bernd.hufmann@ericsson.com>
Tested-by: Bernd Hufmann <bernd.hufmann@ericsson.com>
Reviewed-by: Genevieve Bastien <gbastien+lttng@versatic.net>
Tested-by: Genevieve Bastien <gbastien+lttng@versatic.net>