add complex font support to bold and italic

src/file/paragraph/run/formatting.ts

@@ -14,6 +14,17 @@ export class Bold extends XmlComponent {
     }
 }
 
+export class BoldCs extends XmlComponent {
+    constructor() {
+        super("w:bCs");
+        this.root.push(
+            new Attributes({
+                val: true,
+            }),
+        );
+    }
+}
+
 export class Italics extends XmlComponent {
     constructor() {
         super("w:i");
@@ -25,6 +36,17 @@ export class Italics extends XmlComponent {
     }
 }
 
+export class ItalicsCs extends XmlComponent {
+    constructor() {
+        super("w:iCs");
+        this.root.push(
+            new Attributes({
+                val: true,
+            }),
+        );
+    }
+}
+
 export class Caps extends XmlComponent {
     constructor() {
         super("w:caps");

src/file/paragraph/run/run.spec.ts

@@ -16,6 +16,7 @@ describe("Run", () => {
             run.bold();
             const newJson = Utility.jsonify(run);
             assert.equal(newJson.root[0].root[0].rootKey, "w:b");
+            assert.equal(newJson.root[0].root[1].rootKey, "w:bCs");
         });
     });
 
@@ -24,6 +25,7 @@ describe("Run", () => {
             run.italic();
             const newJson = Utility.jsonify(run);
             assert.equal(newJson.root[0].root[0].rootKey, "w:i");
+            assert.equal(newJson.root[0].root[1].rootKey, "w:iCs");
         });
     });
 

src/file/paragraph/run/run.ts

@@ -1,7 +1,7 @@
 // http://officeopenxml.com/WPtext.php
 import { Break } from "./break";
 import { Caps, SmallCaps } from "./caps";
-import { Bold, Color, DoubleStrike, Italics, RTL, Size, SizeCs, Strike } from "./formatting";
+import { Bold, BoldCs, Color, DoubleStrike, Italics, ItalicsCs, RTL, Size, SizeCs, Strike } from "./formatting";
 import { Begin, End, Page, Separate } from "./page-number";
 import { RunProperties } from "./properties";
 import { RunFonts } from "./run-fonts";
@@ -23,11 +23,13 @@ export class Run extends XmlComponent {
 
     public bold(): Run {
         this.properties.push(new Bold());
+        this.properties.push(new BoldCs());
         return this;
     }
 
     public italic(): Run {
         this.properties.push(new Italics());
+        this.properties.push(new ItalicsCs());
         return this;
     }