Scaffold trace_ RPC name space Handler implementation

[mattsse]

Describe the feature

Describe the feature

Introduce missing TraceApi type, implementation of rpc functions not possible atm, but can start with the type

TODO

• add TraceApi struct
• impl TraceApiServer
• keep impls as todo!()

Additional context

Similar to:

reth/crates/net/rpc/src/admin.rs

Lines 12 to 28 in c7289bd

	/// `admin` API implementation.
	///
	/// This type provides the functionality for handling `admin` related requests.
	pub struct AdminApi {
	/// An interface to interact with the network
	network: NetworkHandle,
	}
	impl AdminApi {
	/// Creates a new instance of `AdminApi`.
	pub fn new(network: NetworkHandle) -> AdminApi {
	AdminApi { network }
	}
	}
	#[async_trait]
	impl AdminApiServer for AdminApi {

No response

Additional context

No response

[CryptoTurboFish]

i can help with this and also #981 another similar task