Heat pump rebalance (TESTMERGE)

[Putnam3145]

About The Pull Request

For some reason I can't build on my system anymore so I can't test this locally or else I would. It's annoying.

This changes two things about heat pumps:

1. As their efficiency decreases, they don't only heat partway to their goal--they'll use more power to reach their goal, up to their standard cap. This leads to identical behavior if you're trying to superheat with them (i.e. set their temperature to either cap) but much "nicer" behavior if both sides are close in temperature. This is a buff to their actual usability but a nerf to their power usage.
2. Heat pumps now try to heat the entire target network to the given temperature instead of just the output air of the heat pump itself, much like passive gates. This should make them much more capable of actually reaching the target temperature, which they had a hard time doing.

Why It's Good For The Game

Heat pumps aren't really strong enough to replace weird thermal regulator setups even with this, this just makes them significantly more convenient to actually use. They still have the same max power usage and the same max heat pump power in inoptimal temperature delta situations, they're just smarter about using it.

Changelog

🆑
balance: Heat pumps now try harder to heat the output, even in inoptimal conditions (but are otherwise not actually stronger)
/:cl: