Print an Intrastat invoice

Dear all,

The previous module included an Intrastat invoice. It is useful, as it is needed in case of Export outside the European Union and more generally any export where goods go through customs.

An Intrastat invoice is an invoice with:
* Intrast codes,
* weight and quantities.
* country of origin.

WARNING: the previous invoice did not include country of origin.

Kind regards,

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Of course, we could ship one... but there are so many report formats used now in OpenERP (Aeroo reports, Webkit, Jasper, RML...) that it's difficult to know which format people would like to have. I have such a report in stock for Aeroo reports ; I can add it if you think it's usefull... but we don't want to add a dependancy on the aeroo modules... so it would mean putting it in a separate module. You understand why I didn't do it so far.