Pattern

[Information about your pattern]

Checklist

A pattern for this format doesn't exist yet (or this PR improves the existing one)
The new pattern has been added to the relevant table in the Readme
The pattern was associated with all relevant MIME types (using #pragma MIME mime-type in the source code)
- Make sure to never use application/octet-stream here as that means "Unidentifiable binary data"
A test file for this pattern has been added to /tests/patterns/test_data
- Try to keep this file below ~ 1 MB