Coil API Refactor (Part III -- move GetCoilInputs to init_state())

[amirroth]

The coil API refactor continues. Here, the various GetCoilInput functions are moved to init_state() and hilarity/madness ensues.

[amirroth]

This PR changes variable/meter and node numbering and broke all unit tests that rely on hard-coded numbers for these, a few for meters, many more for nodes. I have been able to fix most of these, but a few remain:

• EnergyPlusFixture.AirflowNetwork_CheckMultistageHeatingCoil
• EnergyPlusFixture.AirflowNetwork_DuctSizingTest
• EnergyPlusFixture.AirflowNetwork_TestFanModel
• EnergyPlusFixture.AirflowNetwork_UserDefinedDuctViewFactors

I tried a few fixes in one of the tests (I think the first one) and they didn't work for reasons that I couldn't parse. AirflowNetwork has its own parallel node logic that I probably needed to fix also. May need @jasondegraw help in fixing these up.

• EnergyPlusFixture.ExerciseHVACDXHeatPumpSystem
• EnergyPlusFixture.SimulationManager_OutputDebuggingData
• EnergyPlusFixture.UnitHeater_HWHeatingCoilUAAutoSizingTest

Cannot get these to reproduce locally (mac arm64). Strangely, my local build had some other broken unit tests (e.g., in WaterCoilsTest fixture) that didn't show up in CI. I don't know how to handle these.

• EnergyPlusFixture.MixedAir_HXBypassOptionTest

This test uses very strange node number arithmetic that makes no sense to me. I tried to fix it both the way it was and the way I thought it should have been and neither of them worked.

There is also a broken integration test that I need some advice on how to approach.