Implements the CertificateWebRequestFactory and FileBasedCertProvider.
TokenConnectionFactoryTests now passing and no longer ignored.
AnubisOnlyTests now passing and no longer ignored.
GtsBasicAuth now passing and no longer ignored.
GtsAnubisAndTwoWaySSLforRabbit now passing and no longer ignored.
Merge branch 'feature/dotnet-ssl-httpclient' into develop