Added vuex as a store and an event bus.

assets/js/store/index.js

@@ -0,0 +1,20 @@
+import Vue from 'vue'
+import Vuex from 'vuex'
+import booksmodule from './modules/books';
+
+Vue.use(Vuex)
+
+export default new Vuex.Store({
+    state: {
+        count: 0
+    },
+    mutations: {
+        increment(state) {
+            state.count++
+        }
+    },
+    modules:{
+        booksmodule
+    }
+})
+