added style components

ts/docx/xml-components/base-attributes.ts

@@ -0,0 +1,16 @@
+import {XmlComponent} from "./";
+
+export abstract class BaseAttributes implements XmlComponent {
+    private _attr: Object;
+
+    xmlKeys = {};
+
+    constructor(xmlKeys: Object, properties?: any) {
+        this._attr = properties
+
+        if (!properties) {
+            this._attr = {};
+        }
+        this._attr["xmlKeys"] = this.xmlKeys;
+    }
+}