add rknn conversion - install and use scripts, auto convert to rknn after AI training is done and put pt and rknn models to /azaion/models directory

orangepi5/convert.sh

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+# Use converter PT to ONNX
+cd rknn-convert/ultralytics_yolov8/
+cp --verbose /azaion/models/azaion.pt .
+source env/bin/activate
+pip install onnx
+export PYTHONPATH=./
+python ./ultralytics/engine/exporter.py
+cp --verbose azaion.onnx ../
+cd ..
+deactivate
+
+# Use converter ONNX to RKNN
+
+source ~/miniconda/bin/activate
+conda activate toolkit2
+cd rknn_model_zoo/examples/yolov8/python
+python convert.py ../../../../azaion.onnx rk3588 i8
+cp --verbose ../model/yolov8.rknn /azaion/models/azaion.rknn
+conda deactivate
+conda deactivate