Add frontend assets and plugin bundles

Add the legacy frontend themes, scripts, and plugin assets required by the main SPOTA interfaces.

assets/plugins/moment/tasks/component.js

@@ -0,0 +1,9 @@
+module.exports = function (grunt) {
+    grunt.registerTask('component', function () {
+        var config = JSON.parse(grunt.file.read('component.json'));
+        config.files = grunt.file.expand('lang/*.js');
+        config.files.unshift('moment.js');
+
+        grunt.file.write('component.json', JSON.stringify(config, true, 2));
+    });
+}