Merge "Add heart rate to ASensorEvent" into klp-modular-dev

 * Sensor accuracy measure

 */

enum {

    ASENSOR_STATUS_NO_CONTACT       = -1,

    ASENSOR_STATUS_UNRELIABLE       = 0,

    ASENSOR_STATUS_ACCURACY_LOW     = 1,

    ASENSOR_STATUS_ACCURACY_MEDIUM  = 2,

  };

} AUncalibratedEvent;

typedef struct AHeartRateEvent {

  float bpm;

  int8_t status;

} AHeartRateEvent;

/* NOTE: Must match hardware/sensors.h */

typedef struct ASensorEvent {

    int32_t version; /* sizeof(struct ASensorEvent) */

            AUncalibratedEvent uncalibrated_gyro;

            AUncalibratedEvent uncalibrated_magnetic;

            AMetaDataEvent meta_data;

            AHeartRateEvent heart_rate;

        };

        union {

            uint64_t        data[8];