Refactoring, cleanup and linting

[merydian]

Classes are moved to dedicated files to make the code base more easy to navigate. Unused files are deleted. The preset data is moved to a dedicated json file. The formatter and linter Ruff is applied to the code base to make it more readable.

This is a prerequisit for #14 and is related to #15.

[merydian]

One question about SUPPORTED_FORMATS, what is this intended for? I could not find any usages of the variable but left it for now in its own json file.

[cholmes]

Thanks a ton for this, don't have time for extensive review, but it's looking good.

I think we'll try to land #65 first, and then this will likely need a bit of an update.

One question about SUPPORTED_FORMATS, what is this intended for? I could not find any usages of the variable but left it for now in its own json file.

@GISAM - I think you probably added this? Or at least I don't remember adding it and it has flatgeobuf / geojson in it. It doesn't seem to be used at all, should we keep it? Or just remove it as part of the clean up / refactoring?

[GISAM]

@merydian Ah, good catch! I originally planned to store the formats in the SUPPORTED_FORMATS dictionary so they could be used throughout the codebase, but I never got around to it. Instead, the format options ended up being hardcoded. It can be removed.