Implement CurrentLimiter and spare power mode

TestApp/Driver/IChargerDriver.cs

@@ -5,6 +5,8 @@
         string HostAddress { get; set; }
         int Port { get; set; }
 
+        (double I1, double I2, double I3) GetCurrents();
+
         void SetLoadingCurrent(double value);
     }
 }