wayland-backend: Add getter for global name #1251

Job	Run time
cargo-deny	40s
format	28s
clippy-check	9m 30s
check-minimal	1m 21s
coverage-main	2m 4s
Documentation on Github Pages	45s
coverage-tests	4m 55s
coverage-tests (server_system)	2m 5s
msrv	5m 48s
coverage-tests (client_system)	2m 47s
coverage-tests (client_system, server_system)	2m 6s
publish	41s
	33m 10s

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