tmf: Add a method to indicate if a ODA is user-defined

tmf: Add a method to indicate if a ODA is user-defined

This will be useful in diffentiating what analyses are considered
"built-in" and which ones were added manually by the user. For
example, some operations might be prevented by the manager (like
deleting non-user-defined analyses). Or a different icon could be
used for them.

Change-Id: I887291f0b754c26cb8aca1e758b1741cb7152f52
Signed-off-by: Alexandre Montplaisir <alexmonthy@efficios.com>
Signed-off-by: Philippe Proulx <pproulx@efficios.com>
Reviewed-on: https://git.eclipse.org/r/71930
Reviewed-by: Patrick Tasse <patrick.tasse@gmail.com>
Tested-by: Patrick Tasse <patrick.tasse@gmail.com>