Implement arbitrarily-shaped items

[MimiVRC]

Is it planned at all to add the ability to define the shape of something in any shape? the use case is pretty much tetris-shaped items, but if the ability is added to make tetris shaped, might as well make the ability to make it any shape, just in case someday someone wants a weird 8x8 square where it only takes up inventory slots in the 4 corners