Adding plugin setting to allow admin to enable/disable BBB recording option

Hello, 

We run an instance of BigBlueButton server on a box with limited storage, so I wanted to be able to turn off the recording option when the user was adding an activity so they wouldn't eat up the storage.  As you can see, it simply adds a checkbox to the plugin settings.  If checked, the user is allowed to record, if desired.  If not checked, then recording defaults to No without giving the user an option to change it.


P.S.: I'm fairly new with GitHub and collaborative programming, so please forgive me if I'm doing this incorrectly.  I just thought this might be a simple feature you'd be interested in.