Add OyasumiVR

[Raphiiko]

This is the link to the project: OyasumiVR

I've put it under the "Gaming" section since it's mostly used with VR headsets and SteamVR, but it could fit under "Utilities" as well.

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Additional Context

Just in case it's relevant:

• Main Rust code can be found in src-core/ (so not src-tauri/)
• Main frontend code can be found in src-ui/

[FabianLars]

Awesome! Thanks for adding your project to the list.