save img for debug

[MateoLostanlen]

It can be useful to save the images on the pi for debug purposes. This PR adds this option, you just have to add a variable save_img_debug to config_data.json:

{
    "detection_threshold": 0.25,
    "api_url": "https://api.pyronear.org",
    "save_evry_n_frame": 50,
    "loop_time": 7.5,
    "latitude": 48.8673439026,
    "longitude": 2.3841824532,
    "model_weights": "data/yolov5s_v001.onnx",
    "save_img_debug": True,
}

[codecov]

Codecov Report

Merging #92 (ab9fc4d) into develop (8029738) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop      #92   +/-   ##
========================================
  Coverage    63.68%   63.68%           
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  Files            5        5           
  Lines          179      179           
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  Hits           114      114           
  Misses          65       65           

Flag	Coverage Δ
unittests	63.68% <ø> (ø)

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[frgfm]

Thanks! There is one typo I think

Also, can you explain what this is for?
I thought this was the script to trigger multi picture taking, but it's for the regular picture saving ?

[frgfm]

Looks good, thanks!