Integrate EDI into Withholding ISLR (l10n_ve_withholding_islr)

By integrating EDI into the Openerp Venezuela Localization's (ovl) Withholding ISLR Module
We will allow to generate documents that will ease the job of importing exporting data,
and make more B2B, B2C escalable our localization.

In this way every time that a ISLR Withholding for a supplier is being approved will be sent to
the supplier, which will be granted to use them right away as set by law.

This EDI Feature should work as posted in the link below
http://www.openerp.com/node/974