internal(sample-rn): Add Detox for integration/e2e tests of the rn sample #652

Job	Run time
diff_check / diff_check	9s
Build android dev no-frameworks	7m 13s
Build android production no-frameworks	8m 26s
Build ios dev no-frameworks	30m 19s
Build ios production no-frameworks	21m 8s
Build ios dev dynamic-frameworks	21m 43s
Build ios production dynamic-frameworks	20m 20s
Build web	4m 4s
	1h 53m 22s

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