Wine repository gets function for all wines.

api/wine.js

@@ -25,6 +25,11 @@ const addWine = async wine => {
   }
 };
 
-module.exports = {
+const allWines = () => {
-  addWine
+  return Wine.find();
+};
+
+module.exports = {
+  addWine,
+  allWines
 };