rename mooh to path router
Update the GetRouteList test.

This test was failing because it was expecting the list to be ordered,
but that's not the case.
Remove code not related to the router.

`foom` is now the web framework, so the code from mooh.go has been moved
to that repository.

The response and request are handled by the new `web-request` project,
and so the code has been moved to this repository.