It's a fork of TG_POS_ENHANCED module. It was not publish on github by author
Related links:
- http://thierry-godin.developpez.com/openerp/openerp-module-pos-enhanced-en/
- https://www.odoo.com/forum/Help-1/question/POS-Enhanced---with-screenshots--dl-link-40364
Module allow make payments on notebook (by debt)