添加对Lealone数据库的支持

[zhoujin7]

https://github.com/lealone/Lealone
Lealone是基于H2发展而来的数据库

已经在本地测试过. 截图如下:
所有选项卡都是正常的, 包括首页, 数据源, SQL监控, SQL防火墙, Web应用, URI监控, Session监控, Spring监控, JSON API, 都有内容, 不再一一截图.
开启慢sql记录后, 慢sql也记录到了错误日志文件.

[CLAassistant]

All committers have signed the CLA.

[CLAassistant]

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[zhoujin7]

Test JDK 8, ubuntu-18.04
This request was automatically failed because there were no enabled runners online to process the request for more than 1 days.
Github Actions 废弃了 ubuntu-18.04

[zrlw]

可以重新提交一下，工作流已修订，现在用的是最新的ubuntu了。

[lizongbo]

代码存在冲突，请解决冲突后重新提交pr