Add startup log message for Dayglo Detector script

- Added a log message to indicate when the Dayglo Detector script starts.

dayglo_detector/dayglo_detector.py

@@ -115,6 +115,7 @@ def calculate_dayglo_rating(image):
     return rating
 
 async def main():
+    print("Starting Dayglo Detector...")
     # Handle command line argument for image file
     if len(sys.argv) > 1:
         image_file = sys.argv[1]