PneumaticCraft: Repressurized

Added

• Some internal changes to Empty PCB items to make it possible for addon mods to add custom empty PCB's
  • UV Lightbox and Etching Tank now accept any item which extends EmptyPCBItem
  • Added EmptyPCBItem#getSuccessItem() and EmptyPCBItem#getFailedItem() which are used by the Etching Tank to determine the successful/failed etching outcomes
• Added some new item tags related to Compressed/Pneumatic armors
  • pneumaticcraft:armors/compressed_iron and pneumaticcraft:armors/pneumatic
  • Added all PneumaticCraft armor items to forge:armors/boots, forge:armors/leggings, etc.

Fixed

• Fixed Shulker Boxes, Reinforced & Smart Chests from being able to be placed inside one another
• Fixed Reinforced & Smart Chests not dropping their contents if broken with an unsuitable tool