!88 feat: dbms表支持右键菜单：删除表、编辑表、新建表、复制表

* feat: 支持复制表
* feat: dbms表支持右键菜单：删除表、编辑表、新建表

mayfly_go_web/src/views/ops/db/api.ts

@@ -11,6 +11,7 @@ export const dbApi = {
     tableInfos: Api.newGet('/dbs/{id}/t-infos'),
     tableIndex: Api.newGet('/dbs/{id}/t-index'),
     tableDdl: Api.newGet('/dbs/{id}/t-create-ddl'),
+    copyTable: Api.newPost('/dbs/{id}/copy-table'),
     columnMetadata: Api.newGet('/dbs/{id}/c-metadata'),
     pgSchemas: Api.newGet('/dbs/{id}/pg/schemas'),
     // 获取表即列提示