Add custom Eth module that exposes additional OP related fields

[flcl42]

Changes

• Add OP specific fields to the receipts. They are different for deposit tx and the rest

Types of changes

What types of changes does your code introduce?

• Bugfix (a non-breaking change that fixes an issue)
• New feature (a non-breaking change that adds functionality)
• Breaking change (a change that causes existing functionality not to work as expected)
• Optimization
• Refactoring
• Documentation update
• Build-related changes
• Other: Description

Testing

Requires testing

• Yes
• No

If yes, did you write tests?

• Yes
• No

Notes on testing

Optional. Remove if not applicable.

Documentation

Requires documentation update

• Yes
• No

[LukaszRozmej]

looks a bit overengeneered, couldn't we have OptimismEthRpcModule : IEthRpcModule and then return results with derived classes that can have different json serialization rules?

[flcl42]

@LukaszRozmej the latest commit a bit more complicated. But in addition to deduplication, I wanted to bring this PoC of abstracted key data structures. Maybe we can do the same with transactions, blocks, etc later

[LukaszRozmej]

I kind of would prefer composition for the module, but it is fine.

[flcl42]

I kind of would prefer composition for the module, but it is fine.

@LukaszRozmej I don't mind, but why?

[LukaszRozmej]

I kind of would prefer composition for the module, but it is fine.

@LukaszRozmej I don't mind, but why?

Composition is always more flexible