Publish to Open VSX

[1efty]

Is your feature request related to a problem? Please describe.

Publish this extension on https://open-vsx.org/

Describe the solution you'd like

https://github.com/eclipse/openvsx/wiki/Publishing-Extensions#how-to-publish-an-extension

Describe alternatives you've considered

Publish the extension via https://github.com/open-vsx/publish-extensions

Additional context

This will provide support to those that opt to use Open VSX.