dev(narugo): add quick gradio demo for classifiers/yolos

[narugo1992]

from imgutils.generic import YOLOModel, ClassifyModel

if __name__ == "__main__":
    # model = YOLOModel('deepghs/anime_head_detection')
    model = ClassifyModel('deepghs/anime_classification')
    model.launch_demo(server_port=7891)

[codecov]

Codecov Report

Attention: Patch coverage is 23.07692% with 70 lines in your changes missing coverage. Please review.

Project coverage is 96.79%. Comparing base (7508461) to head (dbdba35).
Report is 7 commits behind head on main.

Files with missing lines	Patch %	Lines
imgutils/generic/yolo.py	23.07%	40 Missing ⚠️
imgutils/generic/classify.py	23.07%	30 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #108      +/-   ##
==========================================
- Coverage   98.88%   96.79%   -2.09%     
==========================================
  Files         101      101              
  Lines        3217     3308      +91     
==========================================
+ Hits         3181     3202      +21     
- Misses         36      106      +70     

Flag	Coverage Δ
unittests	96.79% <23.07%> (-2.09%)	⬇️

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