Feat: devmode launcher implementation

[malik672]

closes #10104

[malik672]

@mattsse

[malik672]

ok, will do that and probably ask for help in the next pr

[malik672]

all of this should go in a separate file to not pollute the existing code.

I'd even prefer a new crate for now because we need more stuff from the engine crate

https://github.com/paradigmxyz/reth/blob/1f5fb90bc83dd48d38e2f376790125d68ba92f3e/crates/engine/tree/Cargo.toml#L2-L2

what we need is like an Orchestrator that is a stream that advances the chain by polling the mining mode. It would actually be great if we could leverage the existing payloadbuilder stack for this and trigger a payload based on the MindingMode

lmk if I should provide step by step instructions

I think first we want a fresh crate for this, then a minimal mining task that is ideally wired with a PayloadBuilderHandle and a miningmode

@mattsse what should i name the new crate ?

[mattsse]

maybe dev-node or smth

[malik672]

@mattsse can I get some instructions?

[malik672]

@mattsse made some new changes

[mattsse]

marking as complted via #11703