C# Rewrite Pre-Alpha source code

I am re-implementing the entire game in C#, because I always wanted to
take this idea in new directions. And because programming is fun.

Includes Visual Studio 2013 Project

-Implemented main menu
-partially implemented player manager screen
-implemented loading and saving savegame files

-This version is *not* playable yet. The game main loop has not been
included yet.
-you cannot create a player yet. The game will get stuck in the creation
screen right now if you attempt to use it.

More to come.