Changed JSON communication for detected objects

[BrennoCaldato]

Changed JSON communication for detected objects

• The OBjectDetection and Tracker effects have a key "objects" in the Json that contains a dictionary of TrackedObjectBBox indexed by the object ID
• self.data now keep track of all changes in detected objects

Example of the JSON for ObjectDetection:

{ // effect parameters
        "id": 7QCETIYKEJ
        "selected_object_index": "2"
        "confidence_threshold": "0.5"
        "class_filter": "truck"
        "objects":{
                //these are the detected objects dicts
                "9FDETJYKEJ":{
                        "box_id" : "9FDETJYKEJ"
                        "x1": "50"
                        "y1": "50"
                        "x2": "100"
                        "y2": "100"
                        "delta_x": {...}
                        ...
                }
                "56BR38F17U":{
                        "box_id" : "56BR38F17U"
                        "x1": "50"
                        "y1": "50"
                        "x2": "100"
                        "y2": "100"
                        "delta_x": {...}
                        ...
                }
        }
}

[codecov]

Codecov Report

Merging #674 (e2b51da) into effect-parenting (a00bbb7) will increase coverage by 0.65%.
The diff coverage is 22.48%.

@@                 Coverage Diff                  @@
##           effect-parenting     #674      +/-   ##
====================================================
+ Coverage             52.42%   53.08%   +0.65%     
====================================================
  Files                   151      132      -19     
  Lines                 12346    11093    -1253     
====================================================
- Hits                   6473     5889     -584     
+ Misses                 5873     5204     -669     

Impacted Files	Coverage Δ
src/Clip.h	56.25% <0.00%> (-18.75%)	⬇️
src/Color.cpp	87.93% <0.00%> (-12.07%)	⬇️
src/Color.h	100.00% <ø> (ø)
src/EffectBase.h	50.00% <0.00%> (-50.00%)	⬇️
src/KeyFrame.h	100.00% <ø> (ø)
src/Timeline.h	63.63% <ø> (ø)
src/TimelineBase.cpp	60.00% <0.00%> (-40.00%)	⬇️
src/TrackedObjectBase.cpp	0.00% <0.00%> (ø)
src/TrackedObjectBase.h	0.00% <0.00%> (ø)
src/effects/Bars.cpp	0.00% <0.00%> (ø)
... and 36 more

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