* add SBN decoding
* sbn.yaml instead of files.json/init.json
* add id numbers to file name - filenames internal to SBNs are duplicates
* Fixed bug where we mistakenly interpreted a bank file ID of -1 as the last file in the list rather than no file
* Encoding functional
* cleanup
* Updated .gitignore to catch sbn files
* fixed some bugs and made suggested changes
* Fixes some code review issues
* fixes, pal sbn
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Co-authored-by: Alex Bates <alex@nanaian.town>
Co-authored-by: Ethan Roseman <ethteck@gmail.com>