Added options to create a ParamI18N loading keys from a different bundle

than the main property key

Author: fugerit79

fj-core/src/test/resources/core/util/i18n/test_en.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!DOCTYPE properties SYSTEM "http://java.sun.com/dtd/properties.dtd">
 <properties>
+	<!-- this bundle must remain empty as it's for the default language -->
 </properties>