OpenRPC Support

[shanejonas]

I think this project could benefit from integration with OpenRPC which provides a base foundation for service discovery and tooling such as documentation and client generation, typings (typescript/rust), etc, for JSON-RPC akin to OpenAPI/Swagger.

Here is an example of an ethereum node with the OpenRPC playground, it gets the OpenRPC Document via calling the rpc.discover method:

https://playground.open-rpc.org/?schemaUrl=https://services.jade.builders/core-geth/mainnet/1.11.2

Let me know how I can help.