Move meshing logic into seperate file, shave an additional 1ms off chunk meshing time.
BlocksGeometry is probably a less confusing name.
Add ChunkMesh to remove duplicated code.
I guess blocksGeometry is a pretty terrible name.
Remove duplicated code in item.js
Make the mesher ~.4ms faster by avoiding unnecessary bounds checks.
Shave off another ~.4ms.
Shave off .2ms.
Shave off .1ms.
Update comments.
Merge pull request #167 from crazy2be/cube-mesh

Cleanup + Optimize