<!-- Add the related story/sub-task/bug number, like Resolves#123, or
remove if NA -->
**Related issue:** Resolves#34677 and #35932
Adding ~450K software to the loadtest, including scripts to add more
software in the future.
Software is held in a `software.sql` file, which is used to create a
sqlite DB during osquery perf run/deployment.
# Checklist for submitter
## Testing
- [x] QA'd all new/changed functionality manually
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **New Features**
* Added support for loading software data from an external SQLite
database via a new `--software_db_path` command-line flag for more
realistic simulation scenarios.
* Added import and SQL generation tools to build and manage custom
software libraries.
* **Documentation**
* Added comprehensive README with setup instructions, tool usage, and
end-to-end workflow guidance for the software library.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
