Improve opstack bundle execution

[mattsse]

the bundle trait provides transactions:

rblib/src/platform/bundle.rs

Lines 40 to 46 in f8f44b4

	pub trait Bundle<P: Platform>:
	Serialize + DeserializeOwned + Clone + Debug + Send + Sync + 'static
	{
	type PostExecutionError: core::error::Error + Send + Sync + 'static;
	/// Access to the transactions that are part of this bundle.
	fn transactions(&self) -> &[Recovered<types::Transaction<P>>];

the bundle already contains the 2718 bytes:

rblib/src/platform/bundle.rs

Lines 183 to 184 in 005369b

	inner: EthSendBundle,
	recovered: Vec<Recovered<types::Transaction<P>>>,

however when the bundle is executed this is currently recomputed for opstack because this is required by the evm for l1gas etc.

rblib/src/payload/exec.rs

Line 214 in 005369b

.transact(transaction);

note that this transact fn takes impl IntoTxEnv, so this also supports:

WithEncoded<&Recovered<T>>

currently the Recovered<Tx>::IntoTxEnv -> OpTxEnv computes the 2718 bytes again which can be avoided.

this can be done by adding another helper trait function to bundle for example, or just always operate on WithEncoded<Recovered>

or operate on impl ExecutableTx<Evm>