Re-factor detect_supernova and adopt snappl

[wmwv]

Refactor and adopt to snappl framework.

1. Standardize Filename access
2. Use Image class for data arrays
3. Use Image class for PSF
4. Use Image class for WCS
5. Adopt a config
6. Use logger

[wmwv]

@rknop Does snappl have a way to abstract out the loading of the RomanTDS files?

E.g., I'd like to replace things like

   INPUT_IMAGE_PATTERN = (
        SIMS_DIR
        + "/RomanTDS/images/simple_model/{band}/{pointing}/Roman_TDS_simple_model_{band}_{pointing}_{sca}.fits.gz"
    )

and more broadly the entire block of similar class variables defined starting at

https://github.com/Roman-Supernova-PIT/detect_supernova/blob/main/detect_supernova/pipeline.py#L36

with something more standardized, but I can't find something already existing in snappl. Is it in future snappl?