Embree 3.13.0

From the release note

• Added support for Apple M1 CPUs.
• RTC_SUBDIVISION_MODE_NO_BOUNDARY now works properly for non-manifold edges.
• CMake target 'uninstall' is not defined if it already exists.
• Embree no longer reads the .embree3 config files, thus all configuration has to get passed through the config string to rtcNewDevice.
• Releases upgrade to TBB 2021.2.0 and ISPC 1.15.0
• TBB dll is automatically copied into build folder after build on windows.

OpenXR 1.0.16

From the release note:

This release contains an update to define a new error code, XR_ERROR_RUNTIME_UNAVAILABLE, now returned by the loader at xrCreateInstance and xrEnumerateInstanceProperties when it cannot find or load a runtime for some reason. This should be more clear for developers when encountering it, as well as helpful when troubleshooting errors hit by users. (The previously-returned error was typically XR_ERROR_INSTANCE_LOST, which is confusing when returned when trying to create an instance.) This release also includes a new multi-vendor extension, a new vendor extension, and improved concurrency handling in the loader, among smaller fixes.