[XeTeX] How to tell Xetex don't embed some ttf font into pdf

[Keith J. Schultz]

Hi All,

	I think this would be a nice feature.

	I have create many PDFs for different reasons and have notice
	that not embeding or remove fonts (subsets thereof) can reduce
	the size of the PDF considerably. Of course I have done this
	only when I knew that the recievers had the fonts.

	regards
		Keith.