Fix/add method to detected object (#184)

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# PR Details
## Description

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added tostring method and change logging content
## Related GitHub Issue

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## Related Jira Key
CDAR-517
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## Motivation and Context

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- [ ] I have added any new packages to the sonar-scanner.properties file
- [ ] My change requires a change to the documentation.
- [ ] I have updated the documentation accordingly.
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co-simulation/fed/mosaic-infrastructure/src/main/java/org/eclipse/mosaic/fed/infrastructure/ambassador/InfrastructureInstanceManager.java

@@ -186,7 +186,7 @@ public void onDetectedObject(DetectedObject detection) {
                     instance.sendDetection(detection);
                     // Assuming each sensor would only ever be registered to a single infrastructure
                     // instance
-                    log.debug("Received detected object: {}", detection);
+                    log.trace("Received detected object: {}", detection);
                     break;
                 } catch (IOException e) {
                     log.error("Error occured:  {}", e.getMessage());

co-simulation/lib/mosaic-objects/src/main/java/org/eclipse/mosaic/lib/objects/detector/DetectedObject.java

@@ -338,4 +338,15 @@ public boolean equals(Object obj) {
         if (timestamp != other.timestamp)
             return false;
         return true;
-    }}
+    }
+
+    @Override
+    public String toString() {
+        return "DetectedObject [type=" + type + ", confidence=" + confidence + ", sensorId=" + sensorId
+                + ", projString=" + projString + ", objectId=" + objectId + ", position=" + position
+                + ", positionCovariance=" + Arrays.deepToString(positionCovariance) + ", velocity=" + velocity
+                + ", velocityCovariance=" + Arrays.deepToString(velocityCovariance) + ", angularVelocity=" + angularVelocity
+                + ", angularVelocityCovariance=" + Arrays.deepToString(angularVelocityCovariance) + ", size=" + size.toString()
+                + ", timestamp=" + timestamp + "]";
+    }
+}

co-simulation/lib/mosaic-objects/src/main/java/org/eclipse/mosaic/lib/objects/detector/Size.java

@@ -93,4 +93,9 @@ public boolean equals(Object obj) {
         return true;
     }
 
+    @Override
+    public String toString() {
+        return "Size [length=" + length + ", height=" + height + ", width=" + width + "]";
+    }
+
 }