gapi: Move the World interface into resources

This was necessary to fix some "import cycle" errors I was having when
adding the World api to the resource Data struct.

I think this is a good hint that I need to start splitting up existing
packages into sub files, and cleaning up and inter-package problems too.

lib/main.go

@@ -443,6 +443,7 @@ func (obj *Main) Run() error {
 				Hostname:   hostname,
 				Converger:  converger,
 				Prometheus: prom,
+				World:      world,
 				Prefix:     pgraphPrefix,
 				Debug:      obj.Flags.Debug,
 			})