use harfbuzz for text rendering #295
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(where we write text to a canvas, specifically)
to my understanding,
DrawShapedTextis a drop-in replacement forDrawText. this adds support for rtl scripts and such (e.g. #294). see https://harfbuzz.github.io/what-is-harfbuzz.html(again, i have not actually tested output for this 🙃)