resolve_resource_file still tightly coupled to Mycroft

[ChanceNCounter]

This should probably be refactored to accept relevant info from downstream projects. Its main internal use is for locating language data.

[krisgesling]

would be good to make this consistent with the XDG changes too

perhaps there's a config value for project name and then it checks in all the relevant XDG locations based off that?
eg $XDG_DATA_HOME/project-name/resources

[JarbasAl]

eg $XDG_DATA_HOME/project-name/resources

this would be very useful, not only for devs but also allows users to do things like override the normalizer config