Signature file improvements? about fido

[carlwilson]

This needs decomposing in the light of other signature work, @carlwilson to pick up with sig file review.

[carlwilson]

Another is to use DROID's signature files directly, since they're what PRONOM offers by default, and not have to perform a transformation. This may be a simpler change than above.

This isn't the case because the reason for compiling the sigs is that they can be then used with a standard regular expression engine. Using the PRONOM sigs "raw" would necessitate the development of a matching algorithm instead.

The idea of using Roy to allow other sig sources is definitely interesting though.

[carlwilson]

Hackathon 2023 Review: Not selected for initial tasks. Adding support for multiple signature sources is likely a prerequisite. Doing that well/properly is a task in itself and should be logged as a feature request.