建议: Add support for DolphinDB

[dracpet]

DolphinDB is a real-time platform for analytics and stream processing, powered by a high-performance time series database. It is designed to meet various needs, including data storage, statistical analysis, real-time processing, and machine learning. DolphinDB offers efficient capabilities related to reads and writes, fast queries, complex analysis, distributed parallel computing, and low-latency stream processing. It also supports high availability and scalability.

https://docs.dolphindb.cn/en/about_dolphindb.html