add more files msgs

sensor_msgs/include/sensor_msgs/BatteryState.h

@@ -60,4 +60,29 @@ struct BatteryState
   std::string serial_number;
 };
 
+inline bool operator==(const sensor_msgs::BatteryState& lhs, const sensor_msgs::BatteryState& rhs)
+{
+  return lhs.header == rhs.header &&
+    lhs.voltage == rhs.voltage &&
+    lhs.temperature == rhs.temperature &&
+    lhs.current == rhs.current &&
+    lhs.charge == rhs.charge &&
+    lhs.capacity == rhs.capacity &&
+    lhs.design_capacity == rhs.design_capacity &&
+    lhs.percentage == rhs.percentage &&
+    lhs.power_supply_status == rhs.power_supply_status &&
+    lhs.power_supply_health == rhs.power_supply_health &&
+    lhs.power_supply_technology == rhs.power_supply_technology &&
+    lhs.present == rhs.present &&
+    lhs.cell_voltage == rhs.cell_voltage &&
+    lhs.cell_temperature == rhs.cell_temperature &&
+    lhs.location == rhs.location &&
+    lhs.serial_number == rhs.serial_number;
+}
+
+inline bool operator!=(const sensor_msgs::BatteryState& lhs, const sensor_msgs::BatteryState& rhs)
+{
+  return !(lhs == rhs);
+}
+
 }  // namespace sensor_msgs