Jp support (#1712)
Original commits:
* Add files via upload
* Update README_jp-JP.md
* Update README_jp-JP.md
* Update README_jp-JP.md
* Update README_jp-JP.md
* Add files via upload
* Update and rename README_jp-JP.md to README_ja-JP.md
* Update README.md
* Update README_HE.md
* Apply suggestions from code review