* feat(ipu): add ipu support for paddle_infer backend.
* fix(): remove unused env.
* fix(ipu): simplify user API for IPU.
* fix(cmake): fix merge conflict error in CMakeList.
Co-authored-by: Jason <jiangjiajun@baidu.com>
* Support PPYOLOE plus model
* Optimize ocr system code
* modify example code
* fix patchelf of openvino
* optimize demo code of ocr
* remove debug code
* update demo code of ocr
Co-authored-by: Jack Zhou <zhoushunjie@baidu.com>