Add new tools and benchmarking site

[riteshnoronha]

Dear @developer-guy

Added the following new tools and a benchmarking website

• sbomgr an open source cmd line grep tool for sboms.
• sbomex an open source cmd line sbom finder and downloader, people who are searching for sboms to playaround.

Added a new category called "benchmarks"

• sbombenchmark.dev Quickly evaluate SBOM for quality, compliance and errors

Thank you

[riteshnoronha]

ping @developer-guy @Dentrax

[Dentrax]

Thanks! 🚀 @riteshnoronha