librealsense: 2.25.0 -> 2.29.0 (#69657)

* librealsense: 2.25.0 -> 2.28.0
Semi-automatic update generated by
https://github.com/ryantm/nixpkgs-update tools. This update was made
based on information from
https://repology.org/metapackage/librealsense/versions

* librealsense: 2.28.0 -> 2.29.0
+ split libs and includes into multiple outputs
+ use libusb 1.x and not libusb-compat