feat: Create examples directory and add some examples

* Add svg plugins for vite & rollup
update: more bundle stuff

examples/router.ts

@@ -0,0 +1,21 @@
+import { createRouter, createWebHashHistory } from 'vue-router';
+
+export const routes = [
+  {
+    path: '/basic',
+    component: () => import('./Basic')
+  },
+  {
+    path: '/custom-connectionline',
+    component: () => import('./CustomConnectionLine')
+  },
+  {
+    path: '/custom-node',
+    component: () => import('./CustomNode')
+  }
+];
+
+export const router = createRouter({
+  history: createWebHashHistory(),
+  routes
+});