chore: Embed unit test data (#1812)

* Embed unit test data

* Add testdata

Co-authored-by: anqiansong <anqiansong@bytedance.com>

tools/goctl/model/sql/parser/testdata/user.sql

@@ -0,0 +1,15 @@
+CREATE TABLE `test_user`
+(
+    `id`          bigint                                                 NOT NULL AUTO_INCREMENT,
+    `mobile`      varchar(255) COLLATE utf8mb4_bin                       NOT NULL comment '手\t机  号',
+    `class`       bigint                                                 NOT NULL comment '班级',
+    `name`        varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL comment '姓
+  名',
+    `create_time` timestamp NULL DEFAULT CURRENT_TIMESTAMP comment '创建\r时间',
+    `update_time` timestamp NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+    PRIMARY KEY (`id`),
+    UNIQUE KEY `mobile_unique` (`mobile`),
+    UNIQUE KEY `class_name_unique` (`class`,`name`),
+    KEY           `create_index` (`create_time`),
+    KEY           `name_index` (`name`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin;