Support emoji(color) font?

[yisibl]

Emoji has become very popular and contains a variety of font formats.

Sell also: https://www.colorfonts.wtf/

[HinTak]

Recent skia-python contains some shaping / emoji modifier tests : https://github.com/kyamagu/skia-python/blob/9ffb045811f9b5508e152302d5b81aadca6edd8d/tests/test_font.py#L678