Integrate with https://github.com/mapbox/tiny-sdf to use system fonts rather than download .ttf via XHR

[morandd]

This library and troika-three-text seem to both require .TTF files as a starting point. Global unicode coverage via .ttf/.woff fonts quickly runs into multiple MB of data download (e.g. the Google Noto font for Japanese is 6.2mb alone). To avoid requiring possibly large XHR font downloads for world languages, could this library be integrated with:
https://github.com/mapbox/tiny-sdf

That Mapbox contribution generates SDFs directly from system fonts.

It will be lovely when we can get sharp, beautiful global unicode text support that "just works" in THREE.js :)