[TASK] Move tinymce to a contrib directory

Contrib/tinymce/skins/lightgray/fonts/tinymce-small.ttf

Contrib/tinymce/skins/lightgray/fonts/tinymce-small.woff

Contrib/tinymce/skins/lightgray/fonts/tinymce.eot

Contrib/tinymce/skins/lightgray/fonts/tinymce.svg

Contrib/tinymce/skins/lightgray/fonts/tinymce.ttf

Contrib/tinymce/skins/lightgray/fonts/tinymce.woff

Contrib/tinymce/skins/lightgray/img/anchor.gif

Contrib/tinymce/skins/lightgray/img/loader.gif

Contrib/tinymce/skins/lightgray/img/object.gif

Contrib/tinymce/skins/lightgray/img/trans.gif

Contrib/tinymce/skins/lightgray/skin.ie7.min.css

Contrib/tinymce/skins/lightgray/skin.min.css

Contrib/tinymce/themes/modern/theme.min.js

Contrib/tinymce/tinymce.min.js

README.md