RF: reorganize locale directory structure

- po/mo in same directories now (easier for poedit)
- remove aliases files, cross-platform will need revisiting
- disable tests, needs work

TO DO:
- unclear if subgroups are handled correctly, likely several issues
- currently is a mix of python locale and wxPython.Locale, want only wx
- some codes give errors but still sort of work, 'hi_IN'
- write test(s)