keep the functions sorted
Please review carefully as I intend to mimic this logic with
list and remove, I'm open to suggestions about handling thigs
differently
Change-Id: Ia6359134c44447f3b758870c4dc306ec1f970852
Added create/delete/set/list/show support for roles
Broken up to make reviewing easier.
Will add more functionality (add/remove) later
Change-Id: I95bddd27d8d9d251ad2fd60c3e3ee1e2cbcd7d4b