update the vector rendering engine to allow use of subpixel rendering that makes the resolution 3x as in ClearType

Please see this example: http://blogoscoped.com/archive/2009-09-16-n27.html

There must be plenty of sample code out there. I am nopt sure which kind of restructuring this would require or which engine(s) could do this. I am sure there expertise about this in the FreeType project.

I am not onlytalikin about font rendering here, i am talking about general vector rendering.