Port of the dvdoug's BoxPacker library (originally written in PHP) to C#.

Min, Mid, and Max C# Heap implementations originally from: https://github.com/matejzavrsnik/blitva BoxPacker library (originally in PHP) from: https://raw.githubusercontent.com/dvdoug/BoxPacker

This library is currently stable. Use it, improve it...let's just make it better.