Commands supported (lower case represent arguments)

D01         draw (poly mode: draw contour, ignore aperture)
D02         move
D03         flash (poly mode: error)
Dn          (where n > 10) select aperture
G01         interpolation: linear
G02         interpolation: CW circular
G03         interpolation: CCW circular
G04         comment
G36         poly mode: filled polygon mode on
G37         poly mode: filled polygon mode off
G54Dn       (where n > 10) select aperture
G70         set unit to INCH
G71         set unit to MM
G74         set single quadrant mode (arc)
G75         set multi quadrant mode (arc)
G90         switch to absolute coords
G91         switch to relative coords
Xc          move X, absolute
Yc          move Y, absolute
Ic          move X, relative (arc)
Jc          move Y, relative (arc)
%MOIN       set unit to INCH
%MOMM       set unit to MM
%FS..XcYc   set coordinate format; supports 'L'/'T' and 'A'/'I'
%ADD        add aperture
%LN         layer name
%LP         (sub)layer polarity
%SR         step-and-repeat

Not supported yet (TODO):
	AM: (aperture macro)

Not supported (need example):
	G10         magnified linear interpolation
	G11         magnified linear interpolation
	G12         magnified linear interpolation
