feat: 新增 @pureadmin/table 行、列拖拽示例

src/views/pure-table/base/column-template/index.vue

@@ -0,0 +1,9 @@
+<script setup lang="ts">
+import { useColumns } from "./columns";
+
+const { columns, tableData } = useColumns();
+</script>
+
+<template>
+  <pure-table :data="tableData" :columns="columns" />
+</template>