Need MaterialIcons update

[l.bec...@of2m.fr]

Hi,

In the library, the Material Icons set counts 845 icons.
But there is now more than 930 Material icons in the Github repository.
Could you update the library ?

[Keyamoon]

That is due to some duplicates, and some icons that are multicolor and cannot be used as regular font glyphs. Those icons were excluded from the font repo of material design icons (https://github.com/google/material-design-icons/tree/master/iconfont).