Cloud-J v8

[lizziel]

The main development branch is currently Cloud-J v7.7 from @pratherUCI with some additional updates such as CMake build system. After #2 is merged it will also have no diff updates for compatibility within GEOS-Chem Classic and GCHP, as well as GEOS-Chem within the GEOS and CESM earth system models. I will tag that version v7.7.1.

@pratherUCI has a newer version of Cloud-J that we will put into this repository. He writes:

The next version of Cloud-J standalone is v8.0c, it has been changed (minorly) to include H2O absorption. At the time I also went through all the old commons and removed dead variables (as you did). I will check my list. So how is best to proceed.
BTW, this code enabled me to include NO2 absorption (small effects vs H2O). The major change is in one input table, a few lines of code, and then the clean up. This is not urgent, the only change is the H2O abs.
Prather, Michael (2023). An updated cloud-overlap photolysis module for atmospheric chemistry models, UCI Cloud-J v8.0, with near-UV H2O absorption [Dataset]. Dryad. https://doi.org/10.7280/D1Q398

I believe I have all of the files for v8.0c (@pratherUCI, let me know if they have changed since you posted on Google Drive). The best way to get these into the model would be for me to create a branch off of my original commit, copy in those files, merge in the latest Cloud-J, and create a PR. That should isolate the science differences. There will be merge conflicts but I am familiar enough with the code to resolve them, and can reach out with any questions. I will make @pratherUCI a reviewer to make sure nothing is missed.

There are also several no diff code improvements suggested by @yantosca in his review of #2. These can go into a Z version at any time.

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[lizziel]

We will prioritize this update for GEOS-Chem 14.5.

[lizziel]

As part of this update I am adding a run-time option to turn off the application of UV absorption by water vapor. H2O UV absorption is new in Cloud-J v8 and users may want to investigate the effects or decide not to use it.