Adds a plugin that uses the Wrapland library to interact with compositors
supporting the wlr_output_management_unstable_v1 protocol.
If the backend plugin is available at runtime the interface is instantiated in
parallel with other interfaces and whichever interface has success in
retrieving a management global first is used while the other ones are deleted.
Building this plugin is optionally and requires upcoming Wrapland release
version 0.519.0.