sebastian/purchase_print_report: imprime un listado de la vista de compra en js.

sebas 75ff932a47 commit purchase_print_report		7 lat temu
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purchase_voucher_print.xml	75ff932a47 commit purchase_print_report	7 lat temu
qweb.xml	75ff932a47 commit purchase_print_report	7 lat temu
template.xml	75ff932a47 commit purchase_print_report	7 lat temu