[Backend] Add Huawei Ascend NPU deploy using PaddleLite CANN. (#757)

* Add Huawei Ascend NPU deploy through PaddleLite CANN

* Add NNAdapter interface for paddlelite

* Modify Huawei Ascend Cmake

* Update way for compiling Huawei Ascend NPU deployment

* remove UseLiteBackend in UseCANN

* Support compile python whlee

* Change names of nnadapter API

* Add nnadapter pybind and remove useless API

* Support Python deployment on Huawei Ascend NPU

* Add models suppor for ascend

* Add PPOCR rec reszie for ascend

* fix conflict for ascend

* Rename CANN to Ascend

* Rename CANN to Ascend

* Improve ascend

* fix ascend bug

* improve ascend docs

* improve ascend docs

* improve ascend docs

* Improve Ascend

* Improve Ascend

* Move ascend python demo

* Imporve ascend

* Improve ascend

* Improve ascend

* Improve ascend

* Improve ascend

* Imporve ascend

* Imporve ascend

* Improve ascend

examples/vision/classification/paddleclas/cpp/README.md

@@ -34,11 +34,16 @@ wget https://gitee.com/paddlepaddle/PaddleClas/raw/release/2.4/deploy/images/Ima
 ./infer_demo ResNet50_vd_infer ILSVRC2012_val_00000010.jpeg 3
 # KunlunXin XPU推理
 ./infer_demo ResNet50_vd_infer ILSVRC2012_val_00000010.jpeg 4
+# Huawei Ascend NPU推理
+./infer_demo ResNet50_vd_infer ILSVRC2012_val_00000010.jpeg 5
 ```
 
 以上命令只适用于Linux或MacOS, Windows下SDK的使用方式请参考:  
 - [如何在Windows中使用FastDeploy C++ SDK](../../../../../docs/cn/faq/use_sdk_on_windows.md)
 
+如果用户使用华为昇腾NPU部署, 请参考以下方式在部署前初始化部署环境:
+- [如何使用华为昇腾NPU部署](../../../../../docs/cn/faq/use_sdk_on_ascend.md)
+
 ## PaddleClas C++接口
 
 ### PaddleClas类