Make AeroTab it's own repository

[gold2718]

Discussed in #104

^{Originally posted by Ovewh October 20, 2023}
AeroTab, which is the code that generates the optical tables used in Oslo_Aero, currently lives in the cam/tools directory (not in the noresm_develop branch).
Because lacking of documentation and being hard to use, the tables we are using in Oslo_Aero have not really been look at for the past six years.

The code needs to be refactored to become more configurable and better documented, a end goal could be to make a python wrapper and create something like a pyAeroTab. In my opinion this could make AeroTab into a great tool exploring impact of e.g. aerosol processing (aging and hygroscopic growth) on size distribution and a useful tool for e.g. teaching purposes.

TL;DR Initiate a process of refactoring AeroTab and make into its own repository.

[MichaelSchulzMETNO]

Maybe not needed in 2.1?

[gold2718]

Maybe not needed in 2.1?

Good point, thanks!. The repo exists but so far, 2.1 does not have any CAM externals so this is not needed.
Moving this to NorESM2.3.