ZF-6719: Allow multiple configs
Currently there is only one configuration file. It would be nice, if its possible to combine more.
An example: The prefered way is to set up the configuration under "configs/application.*". So there could be others, something like "configs/navigation.*", which would be the configuration for the navigation-resource-plugin. Or it will be the configuration for the module "navigation" and the config for the navigation-resource-plugin resist under "configs/resources/navigation.*"
One other possibility is, that a module can carry its own configuration at "modules/name/configs/bla.*". As mentioned in the project-structure-proposal  the modules mimic the default structure, so the "configs"-directory is included. This should be used somewhere... ;)