Publish HOI4 Mod Utilities Open VSX

[HARRIER79317931]

same as for cwtools https://github.com/cwtools/cwtools-vscode/issues/98

it would be very cool if we can have this on Open VSX

[rvost]

Please consider publishing to Open VSX as it makes it as easy to install the extension on alternative builds (e.g. VSCodium) as on the original VS code. Downloading VSIX from the Marketplace and installing it manually is inconvenient.

I can make a PR that automates publishing to both platforms if you are interested.

[herbix]

Uploaded to https://open-vsx.org/extension/chaofan/hoi4modutilities