added emphasis to run

ts/docx/run/emphasis.ts

@@ -0,0 +1,34 @@
+import {XmlComponent, Attributes} from "../xml-components";
+
+export class Bold {
+    private b: Array<XmlComponent>;
+    
+    constructor() {
+        this.b = new Array<XmlComponent>();
+        this.b.push(new Attributes({
+            val: true
+        }));
+    }
+}
+
+export class Italics {
+    private i: Array<XmlComponent>;
+    
+    constructor() {
+        this.i = new Array<XmlComponent>();
+        this.i.push(new Attributes({
+            val: true
+        }));
+    }
+}
+
+export class Underline {
+    private u: Array<XmlComponent>;
+    
+    constructor() {
+        this.u = new Array<XmlComponent>();
+        this.u.push(new Attributes({
+            val: true
+        }));
+    }
+}