Add RPC service for API to the lean node

[syjn99]

Describe the feature

https://github.com/ReamLabs/ream/tree/master/crates/rpc/lean

We need a way to fetch the current head, state, etc. There is already a crate for it, so we only have to add a service for it.

ream/crates/common/chain/lean/src/lean_chain.rs

Line 27 in b699064

pub head: B256,

I think fetching current head would be the best point to start.

Additional context

No response

[varun-doshi]

I can take this @syjn99

[shariqnaiyer]

@varun-doshi Please make this an open issue if you're not planning on working on this today or haven't already made substantial progress.

[varun-doshi]

@varun-doshi Please make this an open issue if you're not planning on working on this today or haven't already made substantial progress.

I already mentioned on yesterday's call that I would be opening a PR in sometime

[shariqnaiyer]

Amazin

@varun-doshi Please make this an open issue if you're not planning on working on this today or haven't already made substantial progress.

I already mentioned on yesterday's call that I would be opening a PR in sometime

Amazing! I may have missed that. Thank you for the clarification.