Bitminers (Miner Shelf, Power Sources, Cables, Animations & Custom Models)

UPDATE

1. Added config CH_Bitminers.Config.MinBitcoinRate and CH_Bitminers.Config.MaxBitcoinRate
2. The highest and lowest the bitcoin rate can go to.
3. Fixed not clamping bitcoin rate to 0. It now clamps to the MinBitcoinRate config.