Additional utilities and support for working with ASP.NET Core DataProtection.

This repo is provided as an example for code that can help get ASP.NET Core data protection working in a non-Azure farm environment.

Included:

• XML encryption/decryption using a certificate that isn't required to be in a machine certificate store. This allows you to store the master certificate in a repository like Azure Key Vault. The default XML encryption via certificates currently requires the certificate be in a machine certificate store for decryption.
• Encrypted XML storage in Redis. Well... this was included until it was finally added in the official packages.