Power grid screen - Githubissues

Description of Changes

View the current power output, current heat, active fuel level, and reserve fuel for each reactor.
Control the requested power output for each reactor
Connect reactors and batteries to other batteries and to power nodes.
See the current battery storage level, how much power is coming into the battery, and how much power is going out.
See how many systems are in each power node and how much power is coming in.
Click on a power node to see details for the systems in that power node.
Adjust the requested power for a system - systems will never request more power than that.
Override the requested power to overload a system with power.
Optimizes a few codepaths and fixes a few simulation bugs.

Closes #542

localhost_3000_flight

Screenshot 2023-03-18 at 12 56 54 PM