Add `f16`/`f128` support #4013

Job	Run time
test (ubuntu-24.04-arm, aarch64-unknown-linux-gnu)	9m 59s
test (ubuntu-latest, x86_64-unknown-linux-gnu)	18m 35s
test_llvm	1m 37s
bench	7m 55s
rustfmt	12s
test (windows-latest, x86_64-pc-windows-msvc)	25m 21s
test (ubuntu-latest, s390x-unknown-linux-gnu, gcc-s390x-linux-gnu qemu-user)	6m 48s
test (windows-latest, x86_64-pc-windows-gnu)	31m 54s
test (macos-latest, aarch64-apple-darwin)	11m 2s
test (macos-13, x86_64-apple-darwin)	23m 28s
dist (macos-13, x86_64-apple-darwin)	2m 49s
dist (windows-latest, x86_64-pc-windows-gnu)	2m 52s
test (ubuntu-latest, riscv64gc-unknown-linux-gnu, gcc-riscv64-linux-gnu qemu-user)	6m 36s
dist (ubuntu-22.04, x86_64-unknown-linux-gnu)	1m 35s
dist (ubuntu-24.04-arm, aarch64-unknown-linux-gnu)	1m 42s
dist (windows-latest, x86_64-pc-windows-msvc)	2m 10s
dist (macos-latest, aarch64-apple-darwin)	1m 30s
release	0s
	2h 36m 5s

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