Debugging and reworking
 * Machines saving call formed correctly
 * PGO's can be placed on each other
 * PGO's can not be sand or gravel due to non-cancel-able physics
updates
 * Multi-block Machines do not de-protect existing Machines when they
overlap and fail to assemble
 * Vectors > locations for the purpose of determining relative blocks
 * Multi-block Machines assemble in the correct Location(s)
 * Directions correlate to proper in-game facing, not just arbitrary
number assignment
 * Directions can be used to get correct values for buttons (and other
rotatable blocks)
 + Transportalizers can be interacted with and function (largely) as
intended