[USE] Add script tags for Unicode 16

[NorbertLindenberg]

Unicode 16 encodes several new scripts. Those that will be handled by the USE should be listed in the "Writing system and language tags" section of the USE documentation. Those that won't should be added to the documentation of the shaping engine that will handle them.

Script tags have already been added to OpenType 1.9.1 Alpha.

The new scripts are:

Script	Unicode / ISO 15924 ID	OpenType script tag
Garay	Gara	gara
Gurung Khema	Gukh	gukh
Kirat Rai	Krai	krai
Ol Onal	Onao	onao
Sunuwar	Sunu	sunu
Todhri	Todr	todr
Tulu-Tigalari	Tutg	tutg

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Document Details

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• ID: 194a6d3c-4137-46e9-3a4b-44b990200986
• Version Independent ID: a0c8e788-5228-aa28-670e-3ba1ac3faecd
• Content: Creating and supporting OpenType fonts for the Universal Shaping Engine - Typography
• Content Source: typographydocs/script-development/use.md
• Product: typography

[devosb]

I thought DirectWrite and Harfbuzz had somewhat different lists of what scripts they handled by invoking the USE. Is that not the case anymore? Or, since this is the Microsoft typography website, is DirectWrite assumed?