Security: Introduce AdmissionLoader::getPermissionsAndRestrictions() for loading permissins and restrictions from roles.ini

When loading from roles.ini there's currently an empty permission added which is of course a bug and will be fixed asap.

refs #5647
Security: Load user permissions and restrictions from roles.ini

refs #5647
Security: Remove getPermissions and getRestrictions from the AdmissionLoader

These funtctions are superseded by getRestrictionsAndPermissions.

refs #5647
Security: Rename security to permissions

refs #5647
Security: Rename security view scripts to permissions

refs #5647
Security: Remove role suffix from actions

refs #5647