Dubbo GSoC 2023 - IDL management

## Background
Dubbo currently supports protobuf as a serialization method. Protobuf relies on proto (Idl) for code generation, but currently lacks tools for managing Idl files. For example, for java users, proto files are used for each compilation. It is more troublesome, and everyone is used to using jar packages for dependencies.

## Target
Implement an Idl management and control platform, support idl files to automatically generate dependency packages in various languages, and push them to relevant dependency warehouses

https://issues.apache.org/jira/browse/DUBBO-114

No files, tests, or entry points are identified in the issue. Start by reading the target description and the linked DUBBO-114 proposal, then define the platform scope, supported languages, and dependency warehouses; done means IDL files can generate and publish dependency packages as specified.

Written by the indexing model from the issue text.