Add support for parsing Bun's `bun.lockb` lockfiles

[maxrake]

Overview

The Bun toolkit has it's own lockfile, bun.lockb, that Phylum does not support. This issue is to track and discuss the level of interest for adding that support and, if approved, to implement the solution.

Acceptance Criteria

• Lockfiles generated with bun can be parsed/analyzed by Phylum
• Tests and fixture(s) are added
• Documentation is updated

References

• bun lockfile documentation
• bun documentation
• bun main page