Releases for npm/NodeJS packages

### Prerequisites

* [ ] If you are reporting an issue that affects glyphs for characters for a particular region or regions, did you verify that the characters are within the supported scope of the region or regions? This generally means GB 18030 or Tōngyòng Guīfàn Hànzìbiǎo (通用规范汉字表) for China, Big Five or CNS 11643 Planes 1 & 2 for Taiwan, HKSCS-2016 for Hong Kong, JIS X 0208, JIS X 0212, and JIS X 0213 for Japan, and KS X 1001 and KS X 1002 for Korea.
* [x] Did you thoroughly search the [open](https://github.com/adobe-fonts/source-han-sans/issues) and [closed](https://github.com/adobe-fonts/source-han-sans/issues?q=is%3Aissue+is%3Aclosed) issues to avoid reporting a duplicate issue?
* [x] Did you go through the [official font readme file](https://github.com/adobe-fonts/source-han-sans/raw/release/SourceHanSansReadMe.pdf) to better understand the scope of the project, to include the *Known Issues* section at the very end?

### Description

Hello, this is not much of an issue regarding the fontface itself, but rather how to use it to self-host the font for a website. Are there existing npm packages that have prebuilt fontfaces of this project? I did some searching but could not find any myself, so I was wondering if anyone else has communicated with you about doing so.

What I mean by releasing a npm package is something like https://github.com/adobe-fonts/source-sans-pro . Noteably there is a `package.json` file, and two `.css` files in the root directory. That allows someone who uses NodeJS to load the prebuilt fontfaces from that project into their website code.

If there aren't anything like that yet, is it permitted under the `OFL-1.1` license to create such built fontface files and release them on npm? I hope to do something like https://github.com/KyleAMathews/typefaces/tree/master/packages/source-sans-pro , where I will adopt the original OFL-1.1 license for the built fontfaces as well.

Thanks in advance!