* remove logic of sequences in invoices and use new logic to make it work
* add logic do to not let the user to change the pos number in the document number
* update translations
Now, it depends on l10n_latam_base for the identification
types and on l10n_latam_invoice_document for the invoice
numbering.
It is the AFIP responsibility on the partner that
determines the document type.
There are also 3 demo companies for the most important
responsibility types for yourself.