Introduce executed_block_by_hash

[Rjected]

If we want to be able to send these notifications for reorgs that extend to data on disk:

reth/crates/chain-state/src/in_memory.rs

Lines 726 to 742 in a7a9f9f

	/// Non-empty chain of blocks.
	#[derive(Debug)]
	pub enum NewCanonicalChain {
	/// A simple append to the current canonical head
	Commit {
	/// all blocks that lead back to the canonical head
	new: Vec<ExecutedBlock>,
	},
	/// A reorged chain consists of two chains that trace back to a shared ancestor block at which
	/// point they diverge.
	Reorg {
	/// All blocks of the _new_ chain
	new: Vec<ExecutedBlock>,
	/// All blocks of the _old_ chain
	old: Vec<ExecutedBlock>,
	},
	}

For example in #10551 we need to be able to walk back the canonical chain, even on disk, and populate this data. So we need to be able to fetch ExecutedBlock by hash in the EngineApiTreeHandler.

We basically want to be able to produce executed blocks in the following reorg case:

[Rjected]

done