Added many missing error codes to CefErrorCode.cs
Added many missing error codes to CefErrorCode.cs

From Chromium's net/base/net_error_list.h.  Also added a comment to
indicate where the error codes were sourced from.

illfang/CefSharp,dga711/CefSharp,ruisebastiao/CefSharp,ITGlobal/CefSharp,jamespearce2006/CefSharp,VioletLife/CefSharp,ruisebastiao/CefSharp,gregmartinhtc/CefSharp,ITGlobal/CefSharp,twxstar/CefSharp,jamespearce2006/CefSharp,haozhouxu/CefSharp,windygu/CefSharp,ITGlobal/CefSharp,NumbersInternational/CefSharp,Haraguroicha/CefSharp,illfang/CefSharp,rlmcneary2/CefSharp,ITGlobal/CefSharp,AJDev77/CefSharp,battewr/CefSharp,jamespearce2006/CefSharp,windygu/CefSharp,twxstar/CefSharp,ruisebastiao/CefSharp,wangzheng888520/CefSharp,zhangjingpu/CefSharp,dga711/CefSharp,wangzheng888520/CefSharp,battewr/CefSharp,gregmartinhtc/CefSharp,Haraguroicha/CefSharp,rlmcneary2/CefSharp,gregmartinhtc/CefSharp,rlmcneary2/CefSharp,Haraguroicha/CefSharp,Haraguroicha/CefSharp,ruisebastiao/CefSharp,Livit/CefSharp,haozhouxu/CefSharp,AJDev77/CefSharp,battewr/CefSharp,zhangjingpu/CefSharp,VioletLife/CefSharp,yoder/CefSharp,Livit/CefSharp,windygu/CefSharp,NumbersInternational/CefSharp,AJDev77/CefSharp,NumbersInternational/CefSharp,Livit/CefSharp,joshvera/CefSharp,gregmartinhtc/CefSharp,dga711/CefSharp,rlmcneary2/CefSharp,NumbersInternational/CefSharp,VioletLife/CefSharp,AJDev77/CefSharp,joshvera/CefSharp,wangzheng888520/CefSharp,jamespearce2006/CefSharp,twxstar/CefSharp,yoder/CefSharp,zhangjingpu/CefSharp,wangzheng888520/CefSharp,illfang/CefSharp,windygu/CefSharp,joshvera/CefSharp,illfang/CefSharp,VioletLife/CefSharp,twxstar/CefSharp,haozhouxu/CefSharp,battewr/CefSharp,yoder/CefSharp,Haraguroicha/CefSharp,Livit/CefSharp,joshvera/CefSharp,zhangjingpu/CefSharp,dga711/CefSharp,haozhouxu/CefSharp,yoder/CefSharp,jamespearce2006/CefSharp