Add benchmarking script (#20188) #7741

Job	Run time
test-qnn / test-backend-linux (qnn, operators) / linux-job	17m 31s
test-qnn / test-backend-linux (qnn, models) / linux-job	26m 59s
test-qnn / test-backend-macos	-10s
test-qnn / package-golden-artifacts	2m 31s
	46m 51s

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