Container Permissions

[JohntheFish]

Description

Can we have Container permissions, so we can set permissions on adding/editing individual types of container, like we can on block types or stacks?

I would imagine this working a bit like stack permissions do. Containers are very similar to stacks in concept, so similar processes for adding permissions to containers kind of makes sense.

Example

On a big site with different 'special purpose' containers, we could restrict groups of editors to the containers specific to their role.

For example, we may want to block one group of editors from adding grid containers, but allow them to add two column containers.

Permissions on containers may become particularly desirable when Boards functionality is merged into containers. #11407