Add transforms from virtual device space to real device space
rename rendering functions to indicate wireframe stuff
Factor out backface culling calculation
Remove screen size assumptions from rendering code
Add device coordinate (absolute) line drawing function

(for upcoming tri scan converter)
Add software triangle scan converter
Add 256 shades of gray to colors
add 4x1 by 4x1 dot product function
When transforming entities, transform the normals of their tris as well.
Add simple lighting effect
Merge branch 'master' of github.com:smcameron/space-nerds-in-space