Add interactive shell script for installing VR drivers and runtimes based on headset type. Supports HTC Vive/Valve Index (native SteamVR), Meta Quest/Pico (ALVR streaming), and Monado (OpenXR runtime). Script automatically detects GPU and installs appropriate 32-bit Vulkan libraries required by SteamVR. Includes multilib configuration and user guidance for each VR setup path.
