Change docx folder to more appropriate "file" folder

src/file/drawing/inline/graphic/graphic-data/pic/index.ts

@@ -0,0 +1,10 @@
+import { XmlComponent } from "../../../../../xml-components";
+import { BlipFill } from "./blip/blip-fill";
+
+export class Pic extends XmlComponent {
+
+    constructor(referenceId: number) {
+        super("pic:pic");
+        this.root.push(new BlipFill(referenceId));
+    }
+}