scripts:Add string-based VUID to db file

scripts:Add string-based VUID to db file

Include the new, string-based Valid Usage Unique IDs in the validation
database file. This will be use to map between the old ids and these
new ids.

These script updates are a bit hacky as the migration is underway and
function is being favored over form. Once migration is complete I can
strip down spec.py script to core functionality which should be much
cleaner and simpler than either the original code or this current form.