[FEATURE] Full body tracking w/ new Vivecraft update

[hughdunc]

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

I've always wanted to record minecraft videos with full body tracking and mess around with my friends but its never been supported.

🛠️ Describe the solution you'd like

I would like if you could bridge the SlimeVR server for standalone Meta Quests and the Vivecraft Mod to add another sense of realism to the game. I know this is a draft pull request for tracking but come ON!

🤔 Describe alternatives you've considered

I have considered just using PCVR, but a VR-ready graphics card is too expensive and a lot of people rely on standalone so they can experience playing Minecraft with VR

ℹ️ Anything else?

https://docs.slimevr.dev/tools/mobile-installation.html
Vivecraft/VivecraftMod#316

[Cartrigger]

This is a draft pull request, and until its merged in and completed, we will have to do further things to support it on standalone quest. It requires OpenXR to be finished which is another draft. For now, you wont be seeing it for a while.

[TheReal-Flo]

I have just talked to fayer, and he said he'll try to add OSC support to Vivecraft FBT, so the slime trackers should work then out of the box.
OSC is the FBT system used by VRChat and afaik the only one supported by the Slime standalone version