Feature description

Add essentials.enderchest.preventmodify permission to prevent players modifying other's enderchests. There's invsee.preventmodify, but not the same for enderchest.

How the feature is useful

If you have multiple worlds, one of them in creative or just other inventory for another reason, you can set essentials.invsee.preventmodify to true in world "creative" for players, so any staff wouldn't have any chance to get items in survival from players in creative world with /invsee.

Enderchest modifications doesn't have this feature, so it is possible for those who have enderchest.modify to get items from players with no restriction.

That was my case, but imagine just if you're the owner and have important items in the enderchest, any other staff can open your enderchest