Merge branch '0331_add_soft_switches' into add_dimmerswitch #551

Job	Run time
Build framework (macos-release-availability, -sdk macosx -configuration Release WARNING_CFLAGS=...	15m 1s
Build framework (ios-release, -sdk iphoneos -configuration Release WARNING_CFLAGS='${inherited} -...	9m 57s
Build framework (ios-debug, -sdk iphoneos -configuration Debug WARNING_CFLAGS='${inherited} -We...	7m 11s
Build framework (tvos-debug, -sdk appletvos -configuration Debug WARNING_CFLAGS='${inherited} -W...	7m 46s
Build framework (watchos-debug, -sdk watchos -configuration Debug WARNING_CFLAGS='${inherited}...	10m 55s
Build TV Casting Bridge example	10m 6s
Run framework tests (asan, -enableAddressSanitizer YES -enableUndefinedBehaviorSanitizer YES)	18m 3s
Run framework tests (asan-global-storage, -enableAddressSanitizer YES -enableUndefinedBehaviorSan...	17m 42s
Run framework tests (tsan, -enableThreadSanitizer YES)	20m 11s
	1h 56m 52s

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