Added vuex as a store and an event bus.

assets/js/api/book.js

@@ -0,0 +1,10 @@
+import axios from 'axios';
+
+export default {
+    booksFetch(searchTitle) {
+        return axios.get('/api/books', {
+            params: {title: searchTitle},
+            headers: {'accept': 'application/json'}
+        })
+    }
+}