Migrate the original non-standard extensions of PICO to standard extensions
Known issues:
To use the new version of the OpenXR SDK, ROM version should be 5.2.x and later (For Neo3, a supported version is expected to be released after 2022/12/15).
Some PICO non-standard extensions have been removed. See the migration instructions in the development documentation for details.
This commit updates assets extracted from Pico's OpenXR SDK to the latest version available from Pico, v2.1.0.
Pico claims to mainly have worked on becoming more standard-compliant, Changelog from the official download page: