feat(WeatherDataAPI): add api name method

src/main/java/eirb/pg203/WeatherAPI.java

@@ -65,4 +65,9 @@ public class WeatherAPI implements WeatherDataAPI{
         }
         return temperatures;
     }
+
+    @Override
+    public String getAPIName() {
+        return "WeatherAPI";
+    }
 }

src/main/java/eirb/pg203/WeatherDataAPI.java

@@ -10,4 +10,6 @@ public interface WeatherDataAPI {
     Temperature getTemperature(int day, int hour, String city) throws IOException;
 
     ArrayList<Temperature> getTemperatures(int days, String city) throws IOException;
+
+    String getAPIName();
 }