Add all classes to the count message
Closes #5 (closed).
Example of the new message format
{ "classes": { "person": 1, "bicycle": 0, "car": 0, "motorbike": 0, "aeroplane": 0, "bus": 0, "train": 0, "truck": 0, "boat": 0, "traffic light": 0, "fire hydrant": 0, "stop sign": 0, "parking meter": 0, "bench": 0, "bird": 0, "cat": 0, "dog": 0, "horse": 0, "sheep": 0, "cow": 0, "elephant": 0, "bear": 0, "zebra": 0, "giraffe": 0, "backpack": 0, "umbrella": 0, "handbag": 0, "tie": 0, "suitcase": 0, "frisbee": 0, "skis": 0, "snowboard": 0, "sports ball": 0, "kite": 0, "baseball bat": 0, "baseball glove": 0, "skateboard": 0, "surfboard": 0, "tennis racket": 0, "bottle": 0, "wine glass": 0, "cup": 0, "fork": 0, "knife": 0, "spoon": 0, "bowl": 0, "banana": 0, "apple": 0, "sandwich": 0, "orange": 0, "broccoli": 0, "carrot": 0, "hot dog": 0, "pizza": 0, "donut": 0, "cake": 0, "chair": 0, "sofa": 0, "pottedplant": 0, "bed": 0, "diningtable": 0, "toilet": 0, "tvmonitor": 0, "laptop": 0, "mouse": 0, "remote": 0, "keyboard": 0, "cell phone": 0, "microwave": 0, "oven": 0, "toaster": 0, "sink": 0, "refrigerator": 0, "book": 0, "clock": 0, "vase": 0, "scissors": 0, "teddy bear": 0, "hair drier": 0, "toothbrush": 0 }, "timestamp": "1627295920.2931538", "heading": "0.0", "location": { "lat": "40.63972", "lon": "-8.64352" } }