Move everything except ChangeLog and config.json into public directory.

Move everything except ChangeLog and config.json into public directory.
https://bugs.webkit.org/show_bug.cgi?id=123319

Rubber-stamped by Stephanie Lewis.

* admin: Removed.
* admin/admin.css: Removed.
* admin/builders.php: Removed.
* admin/index.php: Removed.
* admin/repositories.php: Removed.
* api: Removed.
* api/failing-tests.php: Removed.
* api/manifest.php: Removed.
* api/report.php: Removed.
* api/results.php: Removed.
* common.css: Removed.
* config.json: Copied from include/config.json.
* include: Removed.
* include/admin-footer.php: Removed.
* include/admin-header.php: Removed.
* include/config.json: Removed.
* include/db.php: Removed.
* include/init-database.sql: Removed.
* include/json-shared.php: Removed.
* include/test-results.php: Removed.
* index.html: Removed.
* js: Removed.
* js/autocompleter.js: Removed.
* js/build.js: Removed.
* js/dom.js: Removed.
* main.css: Removed.
* public: Added.
* public/admin: Copied from admin.
* public/api: Copied from api.
* public/common.css: Copied from common.css.
* public/include: Copied from include.
* public/include/config.json: Removed.
* public/include/db.php:
* public/index.html: Copied from index.html.
* public/js: Copied from js.
* public/main.css: Copied from main.css.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@157989 268f45cc-cd09-0410-ab3c-d52691b4dbfc