Adding a new scheme to the CCPP
In this exercise, we will implement a new scheme in CCPP that calculates the Modified Red Flag Threat Index (RFTIM) following https://www.weather.gov/media/ama/rftimod_primer.pdf
We will also be adding the RFTIM to the diagnostic output, run a short forecast and display the results.
The exercise is designed to touch all the relevant bits and pieces for writing a new scheme, adding interstitial variables and a diagnostic variable, and outputting the diagnostic variable to disk.
