[webapi] Add developer guide for SIMD
[doc][embeddingapi] Add embedding User and Developer Guide

- Add Embedding_Testing_Suite_User_Guide.md
- Add Embedding_Test_Suite_Developer_Guide.md
- Add Embedding_Test_Suite_Packaging_Guide.md
[webapi] Move these checkpoints to demo-express

- Move these checkpoints to demo-express
Merge pull request #979 from JianfengXu/xujf/simd/readme

[webapi] Add developer guide for SIMD
Merge pull request #960 from yunxliu/yunxliu/webapi/mediaserver

[webapi] Move these checkpoints to demo-express
Merge pull request #962 from zhuyongyong/yongzhu/embeddingapi-doc/md

[doc][embeddingapi] Add embedding User and Developer Guide
usecase-wrt][XWALK-1177]Add Web Dynamic Box tcs

Impacted TCs num(designed): New 1, update 0, deleted 0
Unit test platform: [tizen]
Merge pull request #1057 from linshen/shenlin/add-usecase-XWALK-1177

usecase-wrt][XWALK-1177]Add Web Dynamic Box tcs