Moved supply computers to a separate file in machinery/computer/.
Renamed supply shuttle console to supply control console and properly de-capitalized both console names.
Moves all circuitboards to their respective files.
Computer boards are now in /code/game/objects/items/weapons/circuitboards/computer/.
Buildable machinery boards are in /code/game/objects/items/weapons/circuitboards/machinery/.
Everything else is just in /code/game/objects/items/weapons/circuitboards/.
The circuitboard parent definition is in /code/game/objects/items/weapons/circuitboards/circuitboard.dm.
Did some minor renaming and capitalization fixes on the boards.
Removed unused substation batteryrack code.