Change docx folder to more appropriate "file" folder

src/file/drawing/inline/graphic/graphic-data/pic/blip/source-rectangle.ts

@@ -0,0 +1,8 @@
+import { XmlComponent } from "../../../../../../xml-components";
+
+export class SourceRectangle extends XmlComponent {
+
+    constructor() {
+        super("a:srcRect");
+    }
+}