title: Multiple resource files (.resx) for a single language
body: <p>I'm using the Localizer at the moment to get the values for labels, buttons, etc. from a resource file.   This all works nicely using culture to pick which language resource file it should be using <code>LangaugeResource.en-GB.resx</code> being used correctly for British English and <code>LangaugeResource.cy.resx</code> being used for the Welsh translations.</p>
  
  <p>Is there a way to add an additional layer to the localiser for the choosing of the resource file for example 
  <code>LangaugeResource.en-GB.north.resx</code>
  <code>LangaugeResource.en-GB.south.resx</code>
  so that I can have two resource files, both for British English, but more localised or would I have to use some method other than localisation to use resource files like that? </p>