LP#1205072 - Action Trigger Granularity Case Sensitivity

LP#1205072 - Action Trigger Granularity Case Sensitivity

This change makes the granularity settings case insensitive.

To test this issue
1. Create/Modify an action trigger to have an all uppercase granularity settings.
2. Run action_trigger_runner.pl with the same granularity set to lowercase
3. Observe that the events are not processed.

After the change is applied the granularity case doesn't matter for either the event_definition
or the flag to action_trigger_runner.pl.

I didn't modify the code path for when the granularity only flag isn't set since it
never gets used, and I don't want to change what I cannot test.  Maybe the best course
of action would just be to remove that section?

Signed-off-by: Josh Stompro <stomproj@larl.org>