initial commit of cloudsat decoder

[BenjaminRuston]

Description

Initial commit of a cloudSat decoder for CPR L2 data

Issue(s) addressed

Resolves #1498

Impact

Expected impact on downstream repositories:

Checklist

• [ ] I have performed a self-review of my own code
• [ ] I have run the unit tests before creating the PR

[BenjaminRuston]

@imoradi this is just initial commit, I've removed the dependency on jdutil and just computed the epoch time directly

there is still some cleanup yet to do but can you verify this still works for you.

[imoradi]

Other than the way you calculate epoch which I cannot confirm because I don't have JEDI Python tools, everything else works. I can run and generate the output simply by setting epoch to a specific date.

[BenjaminRuston]

@imoradi I can show you how to run this independently of the pyiodaconv library (quick hack) but also will show you how to build these and run converter on a NASA machine

[BenjaminRuston]

Other than the way you calculate epoch which I cannot confirm because I don't have JEDI Python tools, everything else works. I can run and generate the output simply by setting epoch to a specific date.

@imoradi I can show you how to make a the common util available (it just lives in a build folder rather than the src folder)

[imoradi]

The values are correct but we have to find a better way than hardcoding them

[BenjaminRuston]

@imoradi your change to add Layer and height should be in here now

[BenjaminRuston]

while I do a small flurry of commits, turning off CI and resetting to draft

a ctest is being added to test this converter

[BenjaminRuston]

@fcvdb can you please have a look and we can move this forward there is another PR in draft that will add GPM DPR using this as template