CRA_Assembly.add_to_interfaces
- CRA_Assembly.add_to_interfaces(u, v, size, points, frame)
 Add interface to edge (u, v) interfaces.
- Parameters:
 - uint
 block_j id.
- vint
 block_k id.
- typestr
 Interface type.
- sizefloat
 Interface area.
- pointsint
 Interface vertices.
- frameint
 Local coordinate.
- Returns:
 - None