Turn pronom DROID Signature files into matching rules for binary files

## Short Description

## Possible Labels

Process Pronom DROID Signature files as an alternative to using `libmagic` for quick and dirty identification of binary files so those can be skipped during a scan.

## Select Category

- [ ] Enhancement
- [ ] Add License/Copyright
- [x] Scan Feature
- [ ] Packaging
- [ ] Documentation
- [ ] Expand Support
- [ ] Other

## **Describe the Update**

contains files with signatures describing byte sequences somewhat similar to `libmagic` (but different). This data (under the open government license 3.0 if I am not mistaken) might be used to create filters that can be used to identify binary files in a quick and dirty way. This can be used to filter specific files and prevent them from being processed further by Scancode.

## **How This Feature will help you/your organization**

## **Possible Solution/Implementation Details**

## **Example/Links if Any**

## **Can you help with this Feature**