tmf: Transition custom parsers to the new location

tmf: Transition custom parsers to the new location

If a user has some custom parsers defined in their workspace, and
they upgrade past 1b7d4a9, we can still look in the old location
so that they do not have to re-create the parsers manually.

Change-Id: Idd1c5f92f58d925be7494c75b8d1b668f487c119
Signed-off-by: Alexandre Montplaisir <alexmonthy@voxpopuli.im>
Reviewed-on: https://git.eclipse.org/r/21651
Tested-by: Hudson CI
Reviewed-by: Marc-Andre Laperle <marc-andre.laperle@ericsson.com>
IP-Clean: Marc-Andre Laperle <marc-andre.laperle@ericsson.com>
Tested-by: Marc-Andre Laperle <marc-andre.laperle@ericsson.com>