Color conversions and alpha blending
Gui font loader

Just loads a bitmap font and a way to draw it
Updated gitignore
Bitmap font added
Another gitignore update
Changes to opindex as well as utility functions

Added functions to clear, convolve, load/save image from dialog, and
draw image into other image.
Added vector swizzle and vector multiplication
Math conversions

Just has toRad right now
Lots of rendering function

Ellipse, box, and round rect as well as convinence functions around the
rasterizers.
Basics of some gui
Tetris gui

Just a little tetris game
Move setup into graphics init

Glfw window setup, derilict setup and other setup all moved into
graphics state init
Simple 3d camera
Simple 3d mesh
Updated main that renders a spining cube
Dub changed to treat warnings as errors