Work on moving Document into its own wrapper

src/file/document-wrapper.ts

@@ -0,0 +1,27 @@
+import { Document, IDocumentOptions } from "./document";
+import { Footer } from "./footer";
+import { Header } from "./header/header";
+import { Relationships } from "./relationships";
+
+export interface IViewWrapper {
+    readonly View: Document | Footer | Header;
+    readonly Relationships: Relationships;
+}
+
+export class DocumentWrapper implements IViewWrapper {
+    private readonly document: Document;
+    private readonly relationships: Relationships;
+
+    constructor(options: IDocumentOptions) {
+        this.document = new Document(options);
+        this.relationships = new Relationships();
+    }
+
+    public get View(): Document {
+        return this.document;
+    }
+
+    public get Relationships(): Relationships {
+        return this.relationships;
+    }
+}