Client Certificate Authentication

[gkistler]

Would be nice to have an option to authenticate to NickServ (et al) via client certificate when UseSSL is enabled.

AuthenticateAsClient(String, X509CertificateCollection, Boolean)

Fatty/Fatty/Source/IRCConnection.cs

Line 50 in b238259

sslStream.AuthenticateAsClient(Context.ServerURL);

https://wiki.rizon.net/index.php?title=CertFP

[stoopdapoop]

fix by 0b6c6c6