feat(plugin): Added support for the xugu database

[zhaoyangplus]

• new xugu database Mapper implementation classes, including ConfigInfoBetaMapperByXugu, ConfigInfoGrayMapperByXugu, etc

The abstract Mapper class AbstractMapperByXugu for the xugu database has been implemented

Add an example of xugu database connection configuration in the bootstrap configuration file

Update the Mapper service registration file and add the Mapper implementation related to xugu

Extend the DataSourceConstant constant class and add the XU_GU data source identifier

• Implement GroupCapacityMapper for the xugu database and related SQL adaptations

Implement ConfigInfoMapper and pagination query logic for the xugu database

• Add the xugu version implementation of ConfigTagsRelationMapper

• Complete xugu support for ConfigMigrateMapper and ConfigInfoTagMapper

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[github-actions]

Thanks for your this PR. 🙏
Please check again for your PR changes whether contains any usage/api/configuration change such as Add new API , Add new configuration, Change default value of configuration.
If so, please add or update documents(markdown type) in docs/next/ for repository nacos-group/nacos-group.github.io

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感谢您提交的PR。 🙏
请再次查看您的PR内容，确认是否包含任何使用方式/API/配置参数的变更，如：新增API、新增配置参数、修改默认配置等操作。
如果是，请确保在提交之前，在仓库nacos-group/nacos-group.github.io中的docs/next/目录下添加或更新文档（markdown格式）。

[zhaoyangplus]

Thank you for your help! Let's review it. @KomachiSion

[KomachiSion]

Please submit new plugin into nacos-group/nacos-plugin. Thanks.

[zhaoyangplus]

Please submit new plugin into nacos-group/nacos-plugin. Thanks.

Ok! Thank you for the reminder.

[zhaoyangplus]

Please submit new plugin into nacos-group/nacos-plugin. Thanks.

But I noticed that this plugin seems to only support nacos2.4.3?

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
1 out of 2 committers have signed the CLA.

✅ zhaoyangplus
❌ jowee

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[KomachiSion]

You can add description in README.md in nacos-group/nacos-plugin to tell users xugu plugin only support after version xxx.