Odoo 9.0 - en to es_PY translation catalogue (3 entries)

note: module: website_event_sale
en: Product
es_PY: Producto

note: module: website_event_sale
en: Sales Order
es_PY: Pedido de venta

note: module: website_event_sale
en: Subscription
es_PY: Asientos periódicos
