close https://github.com/elunez/eladmin/issues/655

close https://github.com/elunez/eladmin/issues/802

* fix weird prefixes keys when use RedisUtils.scan

* Column use `` for reserved key

ref: https://stackoverflow.com/questions/2224503/how-to-map-an-entity-field-whose-name-is-a-reserved-word-in-jpa

* add FIND_IN_SET 条件查询

* note

close https://github.com/elunez/eladmin/issues/763

* feat: 增加分页实体 APage，使 Swagger 可显示接口的响应示例

1. 增加类 APage，并重构 PageUtils
2. 调整 UserController 的 `查询用户` 接口的返回值类型

* refactor: rename APage -> PageResult

https://github.com/elunez/eladmin/pull/792
https://github.com/elunez/eladmin/pull/789

* Create RelaxedQueryCharsConnectorCustomizer

* delete tomcat relaxedQueryChars code

* 优化tomcat配置relaxedQueryChars方式

* 获取验证码逻辑，无需加锁，不涉及线程安全问题，提高效率

* 自定义生成策略时，Map容量设置不准确，会导致无必要的扩容

* 优化badsmell:包括空指针以及多次使用变量的提取

* 修改优化部分badsmeall

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Co-authored-by: yujr <yujr@asiainfo.com>