Merge pull request #2 from danielhams/master

First CPP version plus little bug fix to C version
Added benchmarking tool
Converts csv list of framerates into horizontal ppm bar graph
Read by Benchmarker.go
Now outputs framerates as comma-separated list
Fixed bug in VertexPointer, added framerates output
Fixed bug in NormalPointer, added framerate output
Fixed bug in NormalPointer
Implemented framerate printing
Implemented framerate printing, fixed bug in NormalPointer call
Fixed bug in NormalPointer, implemented framerate printing
Now supports C# and Racket
Now supports Rust
Finish some cleanup, c++ streams and constification and add the frame printing from the C version.