Remade IrcDotNet for WinRT framework, renamed library to IrcDotRT, removed IrcDotNet

Change Log:
- Removed old IrcDotNet code, tests etc.
- Updated references to IrcDotRT
- Beginning to change events to pass through relevant information instead of empty EventArgs
- Brought samples to target framework .NET Framework 4.5.1
- Renamed solutions to IRC.RT and IRC.RT Samples
- Changed Resources in library to internal again