Added Emergency and Service vehicle illumination. (#297)

* Added Emergency and Service vehicle illumination.

Author: CezarySzyszkaAltran

osi_object.proto

@@ -539,10 +539,20 @@ message MovingObject
             //
             optional BrakeLightState brake_light_state = 7;
 
-            // State of the (rear) license plate illumination
+            // State of the (rear) license plate illumination.
             //
             optional GenericLightState license_plate_illumination_rear = 8;
 
+            // Lighting of emergency vehicles (ambulance, fire engine, police car, etc.).
+            // Must be set only if a vehicle is allowed to use this illumination type. 
+            // 
+            optional GenericLightState emergency_vehicle_illumination = 9;
+
+            // Lighting of service vehicles (snow removal, garbage truck, towing vehicle, slow or wide vehicle, etc.). 
+            // Must be set only if a vehicle is allowed to use this illumination type. 
+            // 
+            optional GenericLightState service_vehicle_illumination = 10;
+
             // Definition of indicator states.
             //
             enum IndicatorState
@@ -593,6 +603,21 @@ message MovingObject
                 // Light is on.
                 //
                 GENERIC_LIGHT_STATE_ON = 3;
+                
+                // Light is flashing blue.
+                // To be used for emergency vehicles.
+                //
+                GENERIC_LIGHT_STATE_FLASHING_BLUE = 4;
+
+                // Light is flashing blue and red.
+                // To be used for emergency vehicles.
+                //
+                GENERIC_LIGHT_STATE_FLASHING_BLUE_AND_RED = 5;
+
+                // Light is flashing amber. 
+                // To be used for service vehicles.
+                //
+                GENERIC_LIGHT_STATE_FLASHING_AMBER = 6;
             }
 
             // Definition of brake light states.