Re #32 - Migrate WarFoundry files to using Schemas * Add missing spaces to Cats and Core XSD * Fix some incorrect namespaces in Race XSD * Copy schemas to output dir on build * Make WarFoundryXmlFactory validate against Schemas * Make WarFoundryLoader handle failed file loads slightly differently so that we can log out as a warning * Correctly structure "simpleContent" sections of Race XSD Still to do: * Work out why Race XSD doesn't like core:nonNegativeDecimal but appears to be fine with core:percentage * Migrate test files to define namespaces and make sure they match the structure