Rework FloatOrd with total_cmp() and hash by bits #72263

Job	Run time
miri	25m 53s
toml	7s
typos	7s
check-bevy-internal-imports	7s
build (ubuntu-latest)	11m 39s
build (windows-latest)	21m 14s
ci	5m 51s
check-release-content	28s
build (macos-latest)	19m 49s
check-missing-examples-in-docs	35s
check-doc	10m 16s
check-missing-features-in-docs	32s
markdownlint	1m 29s
check-compiles-no-std-examples	55s
check-compiles-no-std-portable-atomic	1m 14s
check-compiles	9m 10s
check-compiles-no-std	1m 2s
msrv	2m 6s
build-wasm-atomics	1m 49s
build-wasm	1m 33s
	1h 55m 56s

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