OpenXR 1.0.20
Update to be compatible with new extensions in OpenXR 1.0.20:
XR_HTCX_vive_tracker_interaction
XR_VARJO_marker_tracking
XR_FB_triangle_mesh
XR_FB_passthrough
See OpenXR 1.0.20 SDK release log for details on new extensions: https://github.com/KhronosGroup/OpenXR-Docs/releases/tag/release-1.0.20