Save 16 bytes per MeshUniform in uniform/storage buffers (#11999) #36906

Job	Run time
build (windows-latest)	4m 31s
build (ubuntu-latest)	2m 32s
miri	7m 27s
build (macos-latest)	4m 13s
run-examples-on-windows-dx12	11m 53s
toml	3s
check-bevy-internal-imports	3s
check-doc	6m 40s
check-missing-examples-in-docs	34s
ci	2m 19s
check-missing-features-in-docs	31s
markdownlint	1m 10s
check-compiles	3m 25s
msrv	1m 3s
build-wasm	56s
	47m 20s

Provide feedback