[TODO] : export mathsymbols from the data file of unicode.org

[shenlebantongying]

The report: http://www.unicode.org/reports/tr25/

Latest math data: https://www.unicode.org/Public/math/latest/

Plan:

• create a new dict > with standard Unicode name and nothing more.

[shenlebantongying]

Actually, i should check this table instead

https://muug.ca/mirror/ctan/macros/unicodetex/latex/unicode-math/unimath-symbols.pdf