Initial stub of Linux client #2398

Job	Run time
linux-x64-internal-release	15m 43s
linux-x64-internal-debug	9m 17s
linux-x64-external-release	10m 59s
Check for Max SDK	6s
macos-x64-internal-release	18m 39s
macos-x64-internal-debug	14m 45s
macos-x64-external-release	19m 25s
windows-x86-internal-release	16m 2s
windows-x86-internal-debug	13m 29s
windows-x86-external-release	20m 15s
windows-x64-internal-release	16m 19s
windows-x64-internal-debug	15m 19s
windows-x64-external-release	15m 40s
maxplugin-${{ matrix.cfg.str }}-${{ matrix.cfg.sdk-version }}	0s
	3h 5m 58s

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