[CVCUDA] Vision Processor Python API and Tutorial (#1394)

* bind success

* bind success fix

* FDMat pybind, ResizeByShort pybind

* FDMat pybind, ResizeByShort pybind, remove initialized_

* override BindProcessorManager::Run in python is available

* PyProcessorManager done

* vision_pybind fix

* manager.py fix

* add tutorials

* remove Apply() bind

* remove Apply() bind and fix

* fix reviewed problem

* fix reviewed problem

* fix reviewed problem readme

* fix reviewed problem readme etc

* apply return outputs

* nits

* update readme

* fix FDMatbatch

* add op pybind: CenterCrop, Pad

* add op overload for pass FDMatBatch

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Co-authored-by: Wang Xinyu <shaywxy@gmail.com>

tutorials/vision_processor/README_CN.md

@@ -0,0 +1,42 @@
+中文 | [English](README.md)
+# 多硬件图像处理库
+
+多硬件图像处理库（Vision Processor）可用于实现模型的预处理、后处理等图像操作，底层封装了多个第三方图像处理库，包括：
+- OpenCV，用于通用CPU图像处理
+- FlyCV，主要针对ARM CPU加速
+- CV-CUDA，用于NVIDIA GPU
+
+## C++
+
+待编写
+
+## Python
+
+Python API目前支持的算子如下：
+
+- ResizeByShort
+- NormalizeAndPermute
+
+用户可通过继承PyProcessorManager类，实现自己的图像处理模块。基类PyProcessorManager实现了GPU内存管理、CUDA stream管理等，用户仅需要实现apply()函数，在其中调用多硬件图像处理库中的算子、实现处理逻辑即可，具体实现可参考示例代码。
+
+### 示例代码
+
+- [Python示例](python)
+
+### CV-CUDA与OpenCV性能对比
+
+CPU: Intel(R) Xeon(R) Gold 6271C CPU @ 2.60GHz
+
+GPU: T4
+
+CUDA: 11.6
+
+Processing logic: Resize -> NormalizeAndPermute
+
+Warmup 100 rounds，tested 1000 rounds and get avg. latency.
+
+| Input Image Shape | Target shape | Batch Size | OpenCV | CV-CUDA | Gain |
+| ----------- | -- | ---------- | ------- | ------ | ------ |
+| 1920x1080   | 640x360 | 1 | 1.1572ms | 0.9067ms | 16.44% |
+| 1280x720    | 640x360 | 1 | 2.7551ms | 0.5296ms | 80.78% |
+| 360x240     | 640x360 | 1 | 3.3450ms | 0.2421ms | 92.76% |