Convert SDEC tests to Regression Data (#2785)

* convert test_parse_species_list

* convert test_calculate_plotting_data

* Incomplete tests- work in progress

* Still issues when syncing hdf file

* Generates correctly but assertion errors when comparing

* Fix assertion errors

* Delete previous mpl test

* Add plotly tests and reformat using black

* Cleanup

* Refactor tests to generate less files

* Matplotlib image tests