[ADD] 12.0 shopinvader_active_binded field

[PierrickBrun]

The field is_shopinvader_bindedonly checks if a binding exists, active or not.

This PR adds a field is_shopinvader_active_binded that is true only if there is an active binding for the product.

Maybe it would be better to modify is_shopinvader_binded but I am not sure if this is a good idea.