Support resources in routes.php

[provokateurin]

A feature that is not used a lot anywhere, but might be useful.

[provokateurin]

workflowengine is one of the apps that use it

[provokateurin]

Might not be worth adding support for as we will run into problems like #91 very quickly. I have a draft branch that technically works, but almost all controllers just use inherited methods which is currently not supported. Since resources in general are not really used a lot we can ignore them for now.