cpal

WASAPI: Improve how default devices are created to support automatic stream routing #857

Job	Run time
ubuntu-test	45s
rustfmt-check	6s
clippy-test	40s
linux-check-and-test-armv7	1m 58s
asmjs-wasm32-test (wasm32-unknown-emscripten)	51s
cargo-publish	0s
wasm32-bindgen-test (wasm32-unknown-unknown)	17s
wasm32-wasi-test (wasm32-wasi)	19s
android-apk-build	1m 39s
android-check	34s
windows-test (x86_64)	4m 34s
windows-test (i686)	3m 40s
ios-build	2m 29s
macos-test	1m 2s
wasm-beep-build	33s
	19m 27s

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