[WIP] initialize an app for address-picker + a demo page

src/Bundle/ChillMainBundle/Resources/public/vuejs/AddressPicker/index.ts

@@ -0,0 +1,10 @@
+import {createApp} from "vue";
+import AddressPicker from "ChillMainAssets/vuejs/AddressPicker/AddressPicker.vue";
+
+document.addEventListener('DOMContentLoaded', async () => {
+    document.querySelectorAll<HTMLDivElement>('div[data-address-picker]').forEach((elem): void  => {
+        const app = createApp(AddressPicker);
+
+        app.mount(elem);
+    })
+})