Initial refactor of RPC screens

- Created View, Edit, Fields, and Source Code partials, and unified with
  equivalent screens in REST fields.
- Discovered that, due to implementing directives, the input filter partials map
  1:1 across both service types, allowing re-use!
- TODO: implement collapse pattern for service listings.
Completed RPC service refactor

- view/edit modes
- tabbed pains internally