Consider alternative approach to registered framework exceptions that would allow more flexibility

[CoolDadTx]

Currently the registered exceptions only impact whether an exception is ignored when GetRootException is called. Consider making this more flexible such that it would be possible to return different exceptions instead.

Use Case: If HttpClient returns back a HttpResponseException and the status code is 400 and the error response type is a bad argument then return ArgumentException instead.

Concerns: Stack trace needs to be rebuilt. Ideally should not be very expensive. Still will want to ignore some exceptions or unwrap others.