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!

services/capability/src/capability/views/capability.py

@@ -10,8 +10,6 @@ def view_capability(request):
     capability = request.capability_info.lookup_capability(request.matchdict["capability_name"])
     if capability:
         body = capability.__json__()
-        return Response(body=body, charset="UTF-8", content_type="test/json")
+        return Response(json_body=body)
     else:
-        return HTTPNotFound(
-            detail=f"Capability with ID {request.matchdict['capability_name']} not found."
-        )
+        return HTTPNotFound(detail=f"Capability {request.matchdict['capability_name']} not found.")