Set visible and invisible edgeband values at panel level

Give the front edge and the remaining sides of a panel their own edgeband values so each side is finished as intended.

1. At panel level, the front edge is shown as the carcass visible edgeband.

2. At panel level, the remaining sides are shown as the carcass invisible edgeband.

3. The carcass visible edgeband and the carcass invisible edgeband can each be given its own edgeband value.