CRA_Assembly.add_interface_to_interfaces
- CRA_Assembly.add_interface_to_interfaces(u, v, interface)
 Add interface to edge (u, v) interfaces.
- Parameters:
 - uint
 block_j id.
- vint
 block_k id.
- interfaceclass:compas_assembly.datastructures.Interface
 Interface.
- Returns:
 - None