Forwarding dispatch implementation #4124

Job	Run time
smithay-check-features	2m 58s
clippy-check	2m 38s
format	15s
check-minimal	1m 53s
smithay-tests	2m 26s
check-msrv	1m 5s
anvil-check-features	2m 12s
Documentation on Github Pages	1m 9s
smallvil-check	56s
WLCS: Core tests	1m 30s
WLCS: Output tests	1m 13s
WLCS: Pointer input tests	1m 29s
WLCS: Bad Buffer Test	1m 16s
	21m 0s

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