Add restrictions on system stacks based on roles

[sshipway]

Rancher Version: 1.1.0-dev1

It should be made possible to move a stack between the Normal and System pages.

This function should probably be available to Owners and possibly Members only - but not Restricted Members. Maybe an additional menu item in the Stack menu under 'Edit'?

System stacks should also be protected in some way, EG make them read-only for Restricted Members

[deniseschannon]

Requesting the ability to make a stack into a system stack is a duplicate of this request.

#3577

But making system stacks protected/restricted access is a different enhancement.

[deniseschannon]

With the release of Rancher 2.0, development on v1.6 is only limited to critical bug fixes and security patches.