Add seated PSVR webcam LED 6DoF tracking

[Davidbkr03]

Summary

• add PSVR1 seven-LED webcam tracking through Windows Media Foundation
• synchronize headset IMU timestamps and fuse low-latency orientation with delayed optical position
• expose PSVR LED, webcam, calibration, and diagnostic controls in Config Tool
• add deterministic solver, timing, fusion, capture, and camera-identity tests
• add an independently branded, checksummed Win64 preview package and first-run SteamVR guide

Reason

PSMoveServiceEx does not track the PSVR headset's built-in LEDs. This
independent derivative adds a deliberately seated, single-webcam 6DoF path
while retaining protocol 0.9-alpha9.0.0 for the iVRy bridge.

Implementation

• calibrated seven-point PSVR LED constellation with robust PnP solving
• sensor-clock rollover handling and host-time mapping
• delayed optical correction fused with headset IMU orientation
• stable Media Foundation webcam identity and asynchronous frame timestamps
• standalone project identity, attribution, third-party notices, and release packaging
• PS3EYEDriver excluded from the distributed preview; generic webcams remain enabled
• dynamic, replaceable libusb runtime with exact corresponding-source bundle

Testing performed

• fresh Ubuntu 24.04 WSL CMake configure
• built and passed all five deterministic tracking tests
• native Windows run 30571759887
  compiled the service, Config Tool, client DLL, and all five tests with the
  pinned MSVC v142 toolset
• the same exact-head run passed all five tests, executable help smoke,
  client-DLL loading, packaged documentation links, required notices,
  checksums, corresponding-source creation, and artifact upload
• GitHub Actions workflow validated with actionlint and PowerShell AST parsing
• JSON, Markdown local-link, modification-notice, and git diff --check validation

Documentation

• standalone README and lineage/attribution notices
• technical PSVR LED tracking design and validation checklist
• user-focused SteamVR/iVRy first-run guide
• reproducible Windows preview build and package-verification guide

Remaining risks

• physical PSVR, webcam, iVRy, and SteamVR behavior cannot be validated until the first hardware test
• real camera exposure, HSV thresholds, latency, and optical scale will need calibration/tuning
• this remains a hardware-test preview until that feedback is incorporated