add: smu and graphite2

[henriqueleng]

CHANGES:

• add graphite and, enable it + icu on harfbuzz (simple stuff, will not bloat the lib)
• add smu, with a simple patch to fix destination dirs.

[rofl0r]

what's the advantage of using icu and graphite on harfbuzz ?
note that i deliberately disabled icu because it breaks crosscompilation:
http://pkg.sabotage.tech/process.cgi?action=pkgoverview&pkg=icu

[henriqueleng]

About icu, I enabled it because I'm writing (already did it, just testing) a texlive recipe, and it needs harfbuzz + icu, so I enabled it to extend compatibility.
I didn't know it break crosscompilation, so no problem in removing it, just wondering about a future approach.

[suiginsoft]

What are you using ICU for?

Harbuzz has a built in version of libUCDN it uses when ICU is disabled, which provides a minimal set of the unicode lookup and transformation functions it needs. You can access them yourself if you look at the hb-unicode.h header.