SWS-31: Capability REST API update

Goals of this story:

1. Overhaul capability server layout
   • Separate files for server entry point and server routes
   • Separate package for view logic
   • Server entry point properly collects all routes and views
2. Modify existing routes/views to match standard agreed upon a while back (can be found here)
3. Utilize more Pyramid features to make the server more robust
4. Add unit tests!