add ocr, ppyoloe, picodet examples (#1076)

* add ocr examples

* add ppyoloe examples

add picodet examples

* remove /ScaleFactor in ppdet/postprocessor.cc

examples/vision/detection/paddledetection/sophgo/python/README.md

@@ -0,0 +1,32 @@
+# PaddleDetection Python部署示例
+
+在部署前，需确认以下步骤
+
+- 1. 软硬件环境满足要求，参考[FastDeploy环境要求](../../../../../../docs/cn/build_and_install/sophgo.md)
+
+本目录下提供`infer_ppyoloe.py`和`infer_picodet.py`快速完成 PP-YOLOE 和 PicoDet 在SOPHGO TPU上部署的示例。执行如下脚本即可完成
+
+```bash
+# 下载部署示例代码
+git clone https://github.com/PaddlePaddle/FastDeploy.git
+cd FastDeploy/examples/vision/detection/paddledetection/sophgo/python
+
+# 下载图片
+wget https://gitee.com/paddlepaddle/PaddleDetection/raw/release/2.4/demo/000000014439.jpg
+
+# 推理
+#ppyoloe推理示例
+python3 infer_ppyoloe.py --model_file model/ppyoloe_crn_s_300e_coco_1684x_f32.bmodel --config_file model/infer_cfg.yml --image ./000000014439.jpg
+
+#picodet推理示例
+python3 infer_picodet.py --model_file model/picodet_s_416_coco_lcnet_1684x_f32.bmodel --config_file model/infer_cfg.yml --image ./000000014439.jpg
+
+# 运行完成后返回结果如下所示
+可视化结果存储在sophgo_result.jpg中
+```
+
+## 其它文档
+- [PP-YOLOE C++部署](../cpp)
+- [PicoDet C++部署](../cpp)
+- [转换PicoDet SOPHGO模型文档](../README.md)
+- [转换PP-YOLOE SOPHGO模型文档](../README.md)