Osage font missing

[claysmalley]

The Osage language has had its own alphabet since 2006, incorporated into Unicode since 2016. This script is missing from our font stack, causing Osage names to render empty in Americana:

We should add Noto Sans Osage to the font stack to match the existing style.

[1ec5]

Note that Osage lies outside the Basic Multilingual Plane, so MapLibre will need more extensive Unicode support before this text will appear on the map: maplibre/maplibre-gl-js#2307. It should already be possible to see Osage set in a system font in osm-americana/openstreetmap-americana#1149, which previews a fix for that issue that would eliminate the use of glyph PBFs like the ones generated by this project. But if maplibre/maplibre-gl-js#4550 lands first, then this addition to the fontstack would be relevant.