Added variable to Vimeos froogaloop.d.ts

vimeo/froogaloop.d.ts

@@ -23,4 +23,6 @@ interface VimeoPlayer {
     getCallback(eventName: string, target_id: string);
     removeCallback(eventName: string, target_id: string);
     getDomainFromUrl(url: string): string;
-}
+}
+
+declare var $f: VimeoPlayerAPI;