Add table for package signing certificate chains

[loic-sharma]

Add a table to answer questions like:

• How many package signatures use a certificate that is revoked? What is the revocation date? How many packages are affected?
• How many package signatures use a certificate that chains to an untrusted root on Windows?
• How many package signatures use a certificate that is invalid?

This table should contain all certificates used to author sign, repository sign, or timestamp packages. This certificate data should be joinable against JverPackageSignatures.

Consider reusing: https://github.com/NuGet/NuGet.Jobs/blob/main/src/Validation.PackageSigning.ValidateCertificate/OnlineCertificateVerifier.cs

[joelverhagen]

One perspective of certificates to consider: https://github.com/NuGet/Engineering/issues/1430

[joelverhagen]

This is done. I haven't done anything with XCA yet. That can be added later if needed.