Implement ots_getContractCreator

[shekhirin]

Describe the feature

Ref #3726

This RPC method does not require a separate database index, so we can implement it without any breaking changes.

The only client that implements this RPC is Erigon, and we should use its implementation as a reference.

Additional context

No response

[onbjerg]

note: it only does not require a separate db index if we are willing to re-execute the transaction that created the contract w tracing since another contract might have created it

[jsvisa]

pick this one.

[kamuik16]

would like to try this, if can someone give some helper refs maybe?