This is a pretty large release with lots of improvements regarding CTA integration.
* Added config options for all columns where units are needed (e.g. az_pointing_unit).
The defaults follow the conventions of the FACT-Tools analysis chain, for CTA you will need to define
these options appropriately. (e.g. `delta_unit: deg`
* Similarly, one can now provide either altitude or zenith distance, mutually exclusive
* If the global config options `true_energy_column` or `size_column` are set, these values are stored in the cross validation output hdf5 file, to enable energy/size dependent performance evaluation.
For now, this is only used in `plot_disp_performance`, where r2 score and sign accuracy are shown versus true energy.