Move lz4 to become external module. It is not in the default manifest anymore (through submanifests) and will need to be added if application requires it per the docs. Samples will be moved to the module itself. Signed-off-by: Anas Nashif <anas.nashif@intel.com>
This directory can contain additional west manifest files. Any files in this directory will be included in the main west.yml file sorted by filename. See example.yaml.sample for an example. For more details about how this works, see this part of the west documentation: https://docs.zephyrproject.org/latest/guides/west/manifest.html#example-2-2-downstream-with-directory-of-manifest-files