Exact Air Mixer - Generate exact N2/CO2/Breathable Gas mixtures no matter the temperatures

## Features - Will mix exact ratios accounting for temperature differences between base gasses thanks to the work done by /u/isyiaco a few days ago. - Has automatic shutoffs for reserve base gas amounts - Has automatic shutoff for maximum air mix reserve - Works with any breath gas: O2, H2, or N2O. ## Necessary Setup: 1. There must be a tank (or at least a pipe reader) on all three input gasses and on the output gas. 2. The two mixers must be placed in this order: N2/Breath Mixer -> CO2 Adder -> Air Mix Tank/Pipe 3. The N2/Breath Gas Mixer expects Breath gas (O2, H2, or N20 depending on your character) to be Input 1. 4. The CO2 Adder expects N2/Breath gas from the first mixer to be Input 1. ## Configurable Features: These settings can be configured in the code at the very top under the defines. ### Reserve Base Gasses Set a reserve value for Breath Gas, N2, and CO2 to keep as base gasses. The air mixers will stop mixing base air if any of them fall below the reserve amount. This amount is given in kPa. Setting any of these to zero will disable reserve gasses. Defaults: - Breath Gas: 100 kPa - N2: 100 kPa - CO2: 50 kPa ### Max Stored Air Mix Set a max stored pressure for your air mix system. The air mixers will stop mixing base air if the air mix system exceeds this pressure. Default: - Air Mix: 20 MPa (20,000 kPa) ### Breath Gas and CO2 Final Mix Ratios Set the desired ratios for Breath Gas and CO2 in the final mix. The script will calculate all the mixing that will happen, including temperature changes during mixing, and determine the exact ratios to actually mix, then fill the rest with N2. Defaults: - Breath Gas Ratio: 0. 20 (20%) - CO2 Ratio: 0. 03 (3%)