Change docx folder to more appropriate "file" folder

src/file/file.ts

@@ -0,0 +1,71 @@
+import { Document } from "./document";
+import { Media } from "./media";
+import { Numbering } from "./numbering";
+import { Paragraph } from "./paragraph";
+import { IPropertiesOptions, Properties } from "./properties";
+import { Styles } from "./styles";
+import { DefaultStylesFactory } from "./styles/factory";
+import { Table } from "./table";
+
+export class File {
+
+    private document: Document;
+    private styles: Styles;
+    private properties: Properties;
+    private numbering: Numbering;
+    private media: Media;
+
+    constructor(options?: IPropertiesOptions) {
+        this.document = new Document();
+        const stylesFactory = new DefaultStylesFactory();
+        this.styles = stylesFactory.newInstance();
+
+        if (!options) {
+            options = {
+                creator: "Un-named",
+                revision: "1",
+                lastModifiedBy: "Un-named",
+            };
+        }
+
+        this.properties = new Properties(options);
+        this.numbering = new Numbering();
+        this.media = new Media();
+    }
+
+    public addParagraph(paragraph: Paragraph): void {
+        this.document.addParagraph(paragraph);
+    }
+
+    public createParagraph(text?: string): Paragraph {
+        return this.document.createParagraph();
+    }
+
+    public addTable(table: Table): void {
+        return this.document.addTable(table);
+    }
+
+    public createTable(rows: number, cols: number): Table {
+        return this.document.createTable(rows, cols);
+    }
+
+    public get Document(): Document {
+        return this.document;
+    }
+
+    public get Styles(): Styles {
+        return this.styles;
+    }
+
+    public get Properties(): Properties {
+        return this.properties;
+    }
+
+    public get Numbering(): Numbering {
+        return this.numbering;
+    }
+
+    public get Media(): Media {
+        return this.media;
+    }
+}