IsValid methods for AudioEmitter and AudioListener (#241) #9

Job	Run time
build (windows-2019, x64-Debug, amd64)	4m 5s
build (windows-2019, x64-Release, amd64)	5m 0s
build (windows-2019, x64-Debug-Clang, amd64)	4m 16s
build (windows-2019, x64-Release-Clang, amd64)	4m 48s
build (windows-2022, x64-Debug, amd64)	2m 15s
build (windows-2022, x64-Release, amd64)	4m 0s
build (windows-2022, x64-Debug-Clang, amd64)	3m 32s
build (windows-2022, x64-Release-Clang, amd64)	4m 8s
build (windows-2019, x86-Debug, amd64_x86)	2m 57s
build (windows-2019, x86-Release, amd64_x86)	4m 11s
build (windows-2019, x86-Debug-Clang, amd64_x86)	3m 8s
build (windows-2019, x86-Release-Clang, amd64_x86)	4m 18s
build (windows-2022, x86-Debug, amd64_x86)	4m 54s
build (windows-2022, x86-Release, amd64_x86)	3m 59s
build (windows-2022, x86-Debug-Clang, amd64_x86)	3m 41s
build (windows-2022, x86-Release-Clang, amd64_x86)	6m 15s
build (windows-2022, arm64-Debug, amd64_arm64)	6m 7s
build (windows-2022, arm64-Release, amd64_arm64)	4m 1s
build (windows-2022, arm64ec-Debug, amd64_arm64)	3m 16s
build (windows-2022, arm64ec-Release, amd64_arm64)	3m 17s
	1h 22m 8s

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