cpal

Added supports_input/output methods to DeviceTrait #928

Job	Run time
android-check	36s
asmjs-wasm32-test (wasm32-unknown-emscripten)	50s
android-apk-build	1m 31s
cargo-publish	0s
clippy-test	49s
ios-build	1m 59s
linux-check-and-test-armv7	1m 47s
macos-test	1m 7s
rustfmt-check	7s
ubuntu-test	28s
wasm32-bindgen-test (wasm32-unknown-unknown)	21s
wasm32-wasi-test (wasm32-wasi)	20s
wasm-beep-build	44s
windows-test (x86_64)	3m 33s
windows-test (i686)	2m 48s
	17m 0s

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