Make changes to supplied settings visible via pointer - .h

User can now provide a pointer to their own SensorSettings structure. If it is supplied it is first filled out to be identical to the desired settings, and then when default cases are selected (because other cases do not match the switch value) the appropriate field is updated in the output SensorSettings. Then the user can double check that SensorSettings matches the settings that they intended. If not then that sub-setting was not a valid choice.

Author: Owen

src/SparkFunLSM6DS3.h

@@ -149,7 +149,7 @@ class LSM6DS3 : public LSM6DS3Core
 	~LSM6DS3() = default;
 
 	//Call to apply SensorSettings
-	status_t begin(void);
+	status_t begin(SensorSettings* pActualSettings = NULL);
 
 	//Returns the raw bits from the sensor cast as 16-bit signed integers
 	int16_t readRawAccelX( void );