Revert/Lock defaults buttons for Statuses and Access Levels

* USES:

- Access Levels

- Statuses (project, task, issue)

* THE IDEA:

Two new buttons in the admin area:
A) A button that allows you to re-add a Status/Access Level which has been deleted.
B) A "Lock Defaults" button for admins that, when locked, would:

1) RESET the current Status or Access Level back to it's original default, ensuring it is as initially setup.

2) Make a COPY of the current configuration as a new object, if it has been changed.

* Example 1:
Over time, an access level has been modified but nobody is sure how it is different from the very first day settings. Clicking this button would allow the Admins to be certain that the setup of the default is consistent with the initial system configuration.