extractor: support extracting using a folder path

Patching up the extractor while working on the launcher, fixes:

makes it so you can compile successfully given a folder path (currently assumes your project path contains iso_data)
ignore buildinfo.json from validation code.
fixes an edge-case that could recursively fill up your entire hard-drive!
allows overriding the decompilation configuration via flag
adds a way to specify where the ISO should be extracted to

open-goal / jak-project