Support tracer configuration for debug_trace* methods

[jamesstanleystewart]

Description

As an infra provider, I want debug_trace* to support a variety of tracers, including flatCallTracer so that I have feature parity between my Besu and Geth/Reth nodes.

Acceptance Criteria

• debug_trace* methods allow configuration of the tracer used. Accepted options include flatCallTracer, callTracer and prestateTracer.
• Output is identical and consistent with other clients

Example request:
{"method":"debug_traceBlockByHash","params":["0xa300bb5b420026615bf2e31b2ea0a8b187afeab8a228cc62a663b1e8a974bac8",{"tracer":"flatCallTracer"}],"id":1,"jsonrpc":"2.0"}

Some useful links:
Geth Tracer Examples https://geth.ethereum.org/docs/developers/evm-tracing/built-in-tracers#prestate-tracer
Reth Tracing guide https://github.com/paradigmxyz/ultimate_evm_tracing_reference

[adrigug]

Hi @macfarla - do you have any visibility wrt when you ll be able to pick this ticket up by any chance? thank you