Toggleable Pumps! :) — Atomcraft Steam update #1756472

Just a quick update to add a long-requested feature: Toggleable Pumps!These give you a lot more control over how you move materials between chambers. :) You could even hook them up to timers and sensors to make more precise machines.Some additional things in this build:BUGFIX: Brass and Barite now have weightsBUGFIX: Crowbar should now break any build pixel at any hardness; walls generated for the Labs biome are now Ancient Corundum Walls which don't count as "built" pixels for the sake of the Crowbar, to maintain progressionQOL: Avatar now mostly fades out when the cursor gets very close to it, to aid in buildingQOL: Added the Ctrl modifier to Blueprint building - when holding it, it will just build as much as possible of the blueprint from your current materials (this is a QOL a lot of people have asked for)BALANCE: Reduced Ceramic's Hardness to 4 so it can be drilled with the Iron Dri...