Issue with G3 special character set

[DanielBujnik]

I have been having an issue with displaying a quaver (music note) using Latin schema. A peek into the code shows that the implementation of kLatinSpecialTable does not match the way its index is being calculated in HandleGLGR, where for GraphicSet::kLatinSpecial case we have:

uint32_t index = (uint32_t)ch - 0x21;

So, for ch = 0x21 we will get 0x0021, while we should get 0x266a according to ABNT 15608-3

[xqq]

@DanielBujnik
Thank you for your bug report. I have tried to fix it in 9917cb3

[DanielBujnik]

Many thanks for prompt fix @xqq.