Previously, we insisted that in order for us to claim that a text variation
sequence is supported or to display it, it needs to be standardized already.
Now we accept any character as the base of a text variation sequence and
support it as far the font used to display it is not an emoji font.
Also fix a typo in a font name.
Test: Unit tests are updated and pass.
Bug: 30874706
Change-Id: I9660ec43aeee84303cfb825352a7f5029d036dd6
d8983d4324