cpubits: add 16 vs 32 and 32 vs 64-bit patterns #104

Job	Run time
test-wasm (1.85)	17s
test-wasm (stable)	19s
test-override-32-on-64	17s
test-cross (powerpc-unknown-linux-gnu)	2m 16s
test-cross (armv7-unknown-linux-gnueabi)	1m 5s
test (x86_64-pc-windows-msvc, windows-latest, 1.85.0)	46s
test (aarch64-apple-darwin, 1.85.0, macos-latest)	18s
test (aarch64-unknown-linux-gnu, 1.85.0, ubuntu-24.04-arm)	18s
test (x86_64-unknown-linux-gnu, ubuntu-latest, 1.85.0)	17s
test (aarch64-apple-darwin, stable, macos-latest)	14s
test (i686-unknown-linux-gnu, ubuntu-latest, 1.85.0, sudo apt update && sudo apt install gcc-mult...	37s
test (aarch64-unknown-linux-gnu, stable, ubuntu-24.04-arm)	23s
	7m 7s

Provide feedback