Blender Gun, Blueprint, and Ship Inventory improvements! Also: Black Powder! — Atomcraft Steam update #638395

This update adds a lot of long-asked for quality-of-life improvements!Blender Gun now respects "islands" of cells separated by static pixels - blending across a wall will not throw things outside of your forge, and you won't accidentally mix your fuel into the chamber!Blueprints can now be flipped in X and Y dimension by pressing 'b' and 'n'Blueprints are now free to place if you have the free cheat on, or if you are in Creative ModeSpaceship Inventory slots have a "Hold" button on them (hand icon) - when set, those materials will not be moved to the ship on pressing Transfer AllThe Spaceship Inventory "Hold" settings are stored in your profile so they will save & restoreBlack Powder can be created from the combination of Charcoal, Potassium Nitrate, and Sulfur - this is an explosive that must be sparked, less powerful than Nitro but still pretty powerful :)Some Hypochlorous Acid reactio...