Read input variables from gEQDSK file

[ThomasWangAPAM]

Input_file_handling.py is modified to include a feature that allows cfspopcon to load several input variables from any geqdsk file. A streamlined version of omfit_classes/OMFITeqdsk.py is added to cfspopcon/OMFIT, from which Input_file_handling.py imports the OMFITgeqdskclass. Most of the development is done by @ThomasWangAPAM and @aarooshgr under the supervision of @nelsonand .

[tbody-cfs]

Suggest to use https://github.com/freegs-plasma/FreeQDSK instead

[hassec]

@ThomasWangAPAM please take a look at the read_case function: https://github.com/cfs-energy/cfspopcon/blob/656c65e73ea035f45be788191b66c0fcbe7bcf76/cfspopcon/input_file_handling.py#L15-L17

This already allows for loading a case from a file and overriding certain parameters. Which is essentially what the eqdsk option would do.

I'd suggest keeping the reading quantities from an eqdsk separate from cfspopcon. And one can use the read_case functionality to overwrite values if one want to run from an eqdsk.

[github-actions[bot]]

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