Tracking issue: Introduce proxy module

[ShiKaiWi]

Describe This Problem

Currently, it is just a simple module called forwarder that forwards the sql query to the right server, but more work can't be handled by the forwarder, including:

• Forward according to the sql rather than the table hints in the sql query;
• Forward all the requests besides the sql query;
• Able to finish query/write about the partitioned table;

Proposal

Design a proxy module which can serve as a separate service or a module in the ceresdb-server.

Additional Context

No response

[chunshao90]

Support automatic table creation in proxy.

[jiacai2050]

Forward according to the sql rather than the table hints in the sql query;

SQL may not enough, other query language should also be supported.

[chunshao90]

I am going to introduce the proxy module, and all protocol layers request the proxy module. The proxy module supports Forward, Auth, PartitionTable query.

[chunshao90]

I split the work into the following tasks:

• The proxy module first supports storage service. feat: introduce proxy module #732
• Integrate forward in proxy. feat: introduce proxy module #732
• Support forward write request in grpc service. feat: forward request in grpc write #844
• The proxy module supports prom service(including forward query). feat: impl prom query with proxy #833
• The proxy module supports influxdb service. refactor: proxy write and route #889
• The proxy module supports mysql service. refactor: proxy sql read #896
• The proxy module supports http service(including forward query). feat: http query with proxy #807
• Support query partition table in grpc query. feat: query partition table with proxy in grpc service #802
• Support write into partition table in grpc write. feat: support write partition table in grpc service #828
• Support query partition table in http query. feat: support querying partition table in prom query and http query #857
• Support query partition table in http write. feat: support querying partition table in prom query and http query #857
• Support query partition table in prom query. feat: support querying partition table in prom query and http query #857
• Support write into partition table in prom write. refactor: proxy write and route #889
• Support query partition table in influxdb query. refactor: proxy sql read #896
• Support write into partition table in influxdb write. refactor: proxy write and route #889