Practical Engineering- Advanced Technology

 - Added a rubber sheet conveyor belt recipe
 - Made regolith output dust instead of flakes
    - Makes the oxygen not duplicated anymore
 - Added a new steel drillhead type, bedrock-alloy composite
    - Extremely large durability, same other stats as steel
 - Removed ExU Bag of Holding
    - It's buggy and can delete items, use backpacks instead
 - Removed OB Luggage, it acts as a "magnet" style object too early
 - Added some aluminium-using recipes where there was iron
    - like GT2 recipes where it was either refined iron or aluminium
 - Some recipes now require ChromatiCraft items
    - The start of more solid CrC integration
 - Added Tubes! for better earlygame item transport
 - Fixed a bug with nitrogen being unobtainable