[FEATURE] Integration of the codemirror plugin

Resources/Public/Plugins/tinymce-codemirror/plugins/codemirror/CodeMirror/addon/search/matchesonscrollbar.css

+.CodeMirror-search-match {
+  background: gold;
+  border-top: 1px solid orange;
+  border-bottom: 1px solid orange;
+  -moz-box-sizing: border-box;
+  box-sizing: border-box;
+  opacity: .5;
+}

Resources/Public/Plugins/tinymce-codemirror/plugins/codemirror/CodeMirror/bin/authors.sh

+# Combine existing list of authors with everyone known in git, sort, add header.
+tail --lines=+3 AUTHORS > AUTHORS.tmp
+git log --format='%aN' >> AUTHORS.tmp
+echo -e "List of CodeMirror contributors. Updated before every release.\n" > AUTHORS
+sort -u AUTHORS.tmp >> AUTHORS
+rm -f AUTHORS.tmp