Stockpile is again getting really hard to maintain. It's more due to the constant nitpicking I come up with than actual underlying issues, but I'm not really happy with the codebase and want to do one more refactor to address things like composition over inheritance and further generalizing MassStorage based on a Quantizer type that does all the splitting.

The end goal is basically "if it has a number, it can be stored easily." Maybe an "energy barrel" that acts as a quick charge station is possible too.