Just uploaded a C# package for ShadowCasting

I stumbled upon a a great 6 part series from Eric Lippert's MSDN blog detailing how to write a shadow casting algorithm in C#. It's been working really well in my pet project.

I asked him if I could put the code up in nuget, and he was okay with it - so it's real easy to add it to your C# code base.

Thought you guys might enjoy!

Nuget: https://www.nuget.org/packages/ShadowCaster/

Github: https://github.com/THEjoezack/ShadowCaster

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