Build support for "policies" that can be associated with custom reserved orders. An attached policy dictates what a customer can expect if their custom server fails. Policy options:
* Ready-Stock - server can be replaced by infrastructure in Ready-Stock - reserved servers activated (made billable) 90 days after delivery but customers can activate early. Failed servers are replaced from Ready-Stock pool immediately, Metal Ops fixes failed server during next maintenance window.
* Sparing - servers at discounted rates that are billable immediately. Failed servers are replaced by spares immediately, Metal Ops fixes failed server during next maintenance window.
* Parts Locker - custom parts are stocked to repair failed custom servers, Metal Ops repairs server during next maintenance window.