数据库名、表名支持配置为默认自动添加反引号

[Gerrit1999]

Is your feature request related to a problem? Please describe. 在使用 IntelliJ 或 DBeaver 之类的数据库管理软件中，查询时如果表名包含大写字母，会出现表名不存在。

Describe your desired behavior 希望能够提供一个配置选项，让用户能够设置默认使用反引号将数据库名和表名括起来。

Describe your solutions/suggestions if you've any A clear and concise description of any solutions/suggestions to this problem or features you've considered.

Additional context Add any other context or screenshots about the feature request here.

[laisanshan]

确实，本来已经用mybatis plus进行操作，有些sql因为没有单引号，导致得用jdbc直接执行