update 1.6.0 inference_lib of Windows to 1.6.1

There are 2 typos at `python_infer_cn.md`.
1. The correct parameter is Float32 instead of kFloat32
2. The correct argument is precision_mode instead of precision

delete the cuda8.0 links in cn and en doc except trt related and add more info about how to use capi, test=develop (#1557)

Update download link of inference lib package on windows.

* fix the DOC of Windows compile , install and inference lib

* fix inference lib package on windows

test=develop

test=develop

* add GetExpectedKernelType func override tule to op_notes

* add examples url

* add exemples to whether override method

* polish description

* polish doc based review comments

* add C-API inference document and provide demo in the doc

test=document_fix

* add C-API inference document and provide demo in the doc

* add cn docs, test=develop

* refine docs, test=develop

* add program doc, test=develop

* fix links, test=develop

* fix links, test=develop

* fix links, test=develop

* fix links, test=develop

* Fluid -> Paddle, test=develop

* Fluid -> Paddle, test=develop

* minor fix, test=develop

* minor fix, test=develop

Fix the DOC of Windows compile , install and inference lib.

The cmake command for the Windows build installation should be modified.
Support download link for inference library of cuda10, update 1.5.2 download link for inference library.

* imporve windows inference lib doc

* update sample images for c runtime library part of english version

* Remove benchmark from index.

* Refine the format of begin.
test=develop

* refine build and install tutorial doc for paddle inference

* remove trt_benchamrk after merge it to trt doc

* dist training on gpu, test=document_preview

* fix the doc

* fix doc

* fix doc

* add the link

* test=develop test=document_preview

* refine trt doc, test=develop, test=document_preview

* add note for adding virtual destructor for nvinfer.h, add step 1 to get infer lib with trt, test=develop, test=document_preview

* refine memory_optimize_doc, test=develop

* follow xiaoguang's comments, test=develop

Unify the guide content structure.

* fix typo in doc

* add faq for lod_tensor

* format the lod_tensor.rst

Python Inference API Documentation refining and updating based on PR #19353

The building and installing documentation should be updated because that the code of inference lib has changed. The current bug is that most of files under the inference library path are missed.