add package icu4c
package icu4c: add prefixed icu-config link
package icu4c: fix icu-config script for static libs
package harfbuzz: add enable icu support
packages harfbuzz pango: fix for icu enabled builds
packages icu4c harfbuzz pango: really fix linking
update package openscenegraph
package qtbase: use icu
update package sqlite