Implemented multi-device sample #211

Job	Run time
Code formatting	11s
Exercise Python examples on ubuntu-latest	1m 58s
Check Ruby Samples ubuntu-latest	1m 23s
Exercise Python examples on macos-latest	5m 37s
Check Ruby Samples macos-latest	1m 55s
Build Windows fetch	2m 59s
Build ubuntu-20.04 gcc os	1m 5s
Build Windows vcpkg	6m 56s
Build ubuntu-20.04 gcc fetch	1m 22s
Build ubuntu-20.04 gcc vcpkg	4m 4s
Build ubuntu-20.04 clang os	50s
Build ubuntu-20.04 clang fetch	1m 56s
Build ubuntu-20.04 clang vcpkg	3m 56s
Build macos-latest gcc os	3m 27s
Build macos-latest gcc fetch	4m 32s
Build macos-latest gcc vcpkg	2m 27s
Build macos-latest clang os	3m 4s
Build macos-latest clang fetch	2m 40s
Build macos-latest clang vcpkg	2m 18s
	52m 40s

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