rust

Revise and expand on C/C++ language support section #156

Job	Run time
build (component-model/examples/tutorial/adder, component)	13s
build (component-model/examples/tutorial/calculator, component)	15s
build (component-model/examples/example-host)	34s
build (component-model/examples/tutorial/command, component)	29s
	1m 31s

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