default output_file for every step

[danbjoseph]

should each step have a sensible default for the output_file (name and path)?

what about keeping the previous filename but appending something like _points or _segmentation or _pixelcount depending on the process that was run (and removing any previous appended defaults if found?)

alternatively, when the user is forced to provide the path, they know where to look for the file and what it'll be called? although this potential issue could also be mitigated by making sure every process logs a completed message that includes the path (which might already be the case), for example:

2024-07-19 11:04:16.000 | SUCCESS  | __main__:main:99 - 
Saved points, images and scores to /Users/danbjoseph/
GitHub/americanredcross/street-view-green-view/data/
interim/ParkView_segmentation.gpkg