Adding Significant Motion test for CtsVerifier

This manual test under the Sensors category checks
some common use-cases for significant motion to ensure
proper implementation.

Change-Id: I2dadba94a7b5ae4b2ee5641a528d3fbec6356fa0

Conflicts:
	apps/CtsVerifier/AndroidManifest.xml
	apps/CtsVerifier/res/values/strings.xml