Add footnote classes

src/file/footnotes/footnote/run/seperator-run.ts

@@ -0,0 +1,10 @@
+import { Run } from "file/paragraph";
+import { Seperator } from "./seperator";
+
+export class SeperatorRun extends Run {
+    constructor() {
+        super();
+
+        this.root.push(new Seperator());
+    }
+}