Merged in andreyl_productengine/viewer-neko-marchcat (pull request #275)

MAINT-7396 [JigglyPuff] Agent that is not estate owner or estate manager shouldn't be able to toggle estate access settings.

Approved-by: Andrey Kleshchev <andreykproductengine@lindenlab.com>
Approved-by: simon_linden <simon@lindenlab.com>
Approved-by: Rider Linden <rider@lindenlab.com>