[Task] support GBase南大通用 database monitor

**Describe the solution you'd like**

support GBase南大通用 database monitor
use jdbc to collect GBase metrics

**Additional context**

http://www.gbase.cn/tech_info/473.html

Start with the GBase technical information link and determine the JDBC connection and metric requirements; the issue names no repository files, tests, or entry points. Done would require a defined GBase database monitor that collects an agreed metric set, but those metrics and validation steps need clarification.

Written by the indexing model from the issue text.