IsValid methods for AudioEmitter and AudioListener #6

Job	Run time
build (windows-2019, x64-Debug, amd64)	2m 41s
build (windows-2019, x64-Release, amd64)	3m 57s
build (windows-2019, x64-Debug-Clang, amd64)	3m 16s
build (windows-2019, x64-Release-Clang, amd64)	4m 9s
build (windows-2022, x64-Debug, amd64)	1m 31s
build (windows-2022, x64-Release, amd64)	2m 23s
build (windows-2022, x64-Debug-Clang, amd64)	4m 27s
build (windows-2022, x64-Release-Clang, amd64)	4m 26s
build (windows-2019, x86-Debug, amd64_x86)	3m 51s
build (windows-2019, x86-Release, amd64_x86)	4m 25s
build (windows-2019, x86-Debug-Clang, amd64_x86)	3m 12s
build (windows-2019, x86-Release-Clang, amd64_x86)	4m 54s
build (windows-2022, x86-Debug, amd64_x86)	2m 37s
build (windows-2022, x86-Release, amd64_x86)	4m 10s
build (windows-2022, x86-Debug-Clang, amd64_x86)	6m 23s
build (windows-2022, x86-Release-Clang, amd64_x86)	5m 4s
build (windows-2022, arm64-Debug, amd64_arm64)	2m 20s
build (windows-2022, arm64-Release, amd64_arm64)	2m 56s
build (windows-2022, arm64ec-Debug, amd64_arm64)	3m 16s
build (windows-2022, arm64ec-Release, amd64_arm64)	3m 33s
	1h 13m 31s

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