POC: Build blocks with blob txs

[halo3mic]

About

• This is POC for building blocks with blob transactions.
• It is tested and works for cases where Blobs == BlobTxs and when Blobs > BlobTxs. The case where BlobTxs < Blobs still needs to be handled.
• This relates to PR POC: Support blocks with blob txs suave-geth#197

Example of successful blocks with this version

• 10543547 see beacon explorer for 5 included blobs here
• 10543699 see beacon explorer for 5 included blobs here

[lthibault]

@halo3mic are you looking into the test failure? No pressure, just want to track this. 😃

[halo3mic]

@halo3mic are you looking into the test failure? No pressure, just want to track this. 😃

Haven't looked into it yet, will take a look tmrw probably :)

[halo3mic]

Todo

• Consider merging original geth code
• Refactor / Optimise

[halo3mic]

The logic that I added is present in the vanilla geth so it makes little sense to deviate from it and maintain some custom logic instead of just merging the latest geth changes into suave-execution-geth.