Split OrthographicProjection::default into 2d & 3d (Adopted) #47536

Job	Run time
toml	2m 1s
check-missing-examples-in-docs	38s
check-bevy-internal-imports	7s
build (windows-latest)	7m 17s
check-doc	11m 36s
build (ubuntu-latest)	4m 2s
ci	4m 9s
build (macos-latest)	2m 57s
miri	7m 46s
run-examples-macos-metal	4m 56s
typos	7s
check-missing-features-in-docs	30s
markdownlint	1m 4s
check-compiles	5m 58s
msrv	1m 11s
build-wasm-atomics	1m 32s
build-wasm	1m 21s
	57m 12s

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