Add script for fetching Noto Sans font

[dannysu]

The build instruction for Windows has this manual step. This script automates getting the Noto Sans font from the source.

https://fonts.google.com/noto/specimen/Noto+Sans links to https://github.com/notofonts/noto-source, which then says to go to https://notofonts.github.io/.

[Taiko2k]

Fonts are a bit of a messy issue. I haven't documented this anywhere but currently only the fonts I included in the exe bundle are the ones that are used.

They are:

• Noto Sans, (inc Bold, Medium, ExtraCondensed and ExtraCondensedBold)
• Noto Sans CJK JP versions of the above.

But other language versions won't be used. So importing every Noto font is unnecessary. Also I'm not entirely sure if they can be put in sub folders.

I'm not entirely sure on all this, fontconfig is complicated, and even more complicated on Windows where the behavior is different. But I remember running into performance issues trying to load more fonts.