update rpc module

[kyscott18]

Closes #1170, #1290, #1291

Description

• create rpc module to replace requestQueue
• support websocket based eth_subscribe

Remaining

• websocket error cases
• skip fetching transactions for a block that doesn't match any filters (websocket)
  

  ponder/packages/core/src/sync-realtime/index.ts

  Lines 1048 to 1050 in bbb763d

  	block = await _eth_getBlockByNumber(args.rpc, {
  	blockTag: "latest",
  	});

• update config

// ponder.config.ts
import { createConfig } from "ponder";

export default createConfig({
  networks: {
    mainnet: {
      chainId: 1,
      rpcUrl: [...],
    }
  }  
  // ... more config
}); 

Eventually I think we should use the config defined in #1292, but fine with not doing it now

• rebase trace level logging 4ea0ef5