Enhancement: Limited User Account Role

[malvidin]

Add a limited user role, which would only be able to view its own profile and submissions. It could still be part of a classification group, so that the limited user submissions could still be viewed by an analyst assigned to the same group.
With auto-registration, this could increase the ability for users to submit samples or URLs for analysis when they should not see other submissions.

My first thought was to overload the TLP:RED classification, but I don't think that would work. It still may be appropriate to only allow the submitter to view TLP:RED (since it should be "exchanged verbally or in person"), but that is not simple either.

[cccs-sgaron]

With the current classification engine, since the first required part is a level with steps and the steps are compared by only checking of the user classification is bigger then the file classification, it makes doing stuff like this somewhat impossible. Unless ou have a clever idea how we can circumvent this without changing every single classification checks possible.