Add frontend assets and plugin bundles

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

assets/plugins/select2/select2_locale_zh-TW.js

@@ -0,0 +1,14 @@
+/**
+ * Select2 Traditional Chinese translation
+ */
+(function ($) {
+    "use strict";
+    $.extend($.fn.select2.defaults, {
+        formatNoMatches: function () { return "沒有找到相符的項目"; },
+        formatInputTooShort: function (input, min) { var n = min - input.length; return "請再輸入" + n + "個字元";},
+        formatInputTooLong: function (input, max) { var n = input.length - max; return "請刪掉" + n + "個字元";},
+        formatSelectionTooBig: function (limit) { return "你只能選擇最多" + limit + "項"; },
+        formatLoadMore: function (pageNumber) { return "載入中..."; },
+        formatSearching: function () { return "搜尋中..."; }
+    });
+})(jQuery);