Those fields in the rma.operation allows us to control if we want to ensure that the
same lot as the one indicated in the RMA should be used in deliveries to customers
and receipts from suppliers
the rma module had company_id fields on rma.order and rma.order.line but not on rma.operation,
and no global multicompany record rules.
-> we fix this and avoid a mess with people allowed to see an operation in the drop down list
but unable to use it because if points to a warehouse of another company
[IMP]Separate menus for customer and supplier operations
* Add active field to rma operation
* Added tests
* Fix travis
* Fix create supplier rma from customer rma
