replace GPL licensed components

* add how to do kie

* fix title

* fix typo

* fix doc by reviewer

* fix doc

* kie doc

* fix xlm model export

* fix doc

* add wildreceipt dataset

* fix doc

* fix doc

* add more dataset yamls and fix re exceptions

* unify kie and ser for vqa data format

* fix config and label ops

* fix doc

* add distort bbox

* [cherry-pick] Fix some typos from release/2.4 branch and merge.

* rm readme_en.md in deploy/cpp_infer/.

* Fix others typos.

* update VQA README.md and add en version

* restore ppstructure/README.md

* fix vq utils

* fix bs

* add LayoutLM ser

* add LayoutLM ser

* rm _

* Update README.md

* Update README.md