Multilanguage improvement

[ChustaSoft]

Created the singleton AppSettings, we could take advantage of that, for example, by creating a multilanguage application.

We could do it by using xml with Dom or Sax parsers

There's a basic question to do that, which one is the best way? making an only parser that retrieves every string from a single xml, or maybe more xml depending on the panel. And how should we create the constructor panels?