-Need to fix:

• In the ValidationParameters(ValidationParameters other), the value of TryAllIssuerSigningKeys is not copied over.
• Also in the new model TryAllIssuerSigningKeys is false by default, but true by default in the current model.
• Verify that there are no other missed differences between ValidationParameters and TokenValidationParameters.
  Note: some differences are intended, like there's no TokenDecryptionKey property, only the TokenDecryptionKeys collection.