add borderbox2 component

src/components/borderBox2/index.vue

@@ -0,0 +1,20 @@
+<template>
+  <div class="border-box-2">
+    <slot></slot>
+  </div>
+</template>
+
+<script>
+export default {
+  name: 'BorderBox2'
+}
+</script>
+
+<style lang="less">
+.border-box-2 {
+  box-sizing: border-box;
+  border-style: solid;
+  border-image: url('./img/border.png') 14 fill;
+  border-width: 14px;
+}
+</style>