moved line rendering into a function
Merge branch 'whizzgraphics_sprites' of github.com:rattboi/gateboy into whizzgraphics

Conflicts:
	synthesis/peripherals/whizgraphics.sv
added sprite rendering, sortof works
Merge branch 'whizzgraphics' of github.com:rattboi/gateboy into whizzgraphics

Conflicts:
	synthesis/peripherals/whizgraphics.sv