Faster draw-line

Added arity checker

Minor optimizations

Faster line drawing

Minor opt

LIT2 opt

Use new meta port

Added meta

Added meta

Added meta-end

Added metadata

Added badge

Minor optimization

Monochromatic mode is working

Added screen clearing routine

Progress on monochromatic mode

Use generic build file

Fixed drifblim build

Tested with Drifblim

Minor opt