Update BLS + Compression to ERC-4337 >= v0.7.0

[jacque006]

With the release of ERC-4337 v0.7.0, the BLS + Compression work (Contracts, tests, utilities, demo) should be updated to the latest 4337 version. The bulk of this work will likely be updating the compression logic for changes to UserOp fields.

This is a low priority item as proto-danksharding (EIP-4844) has made rollup data availability costs (blobs) extremely cheap. This would become higher priority if blob fees significantly increased.

Relevant PRs:

• Add compression to bundler #229
• Add wax compression bundler#1

Previous issue & additional context:

• Update compression to 4337 contracts v0.7.0 #226

[jacque006]

@voltrevo Any additional details/context that should be added to this?

[voltrevo]

@jacque006

I think the modifications to make it work would be fairly small, in particular there's a change to the shape of UserOperation.

For the bundler, merging/rebasing the changes from 0.6 to 0.7 could be challenging. It might be better to just spend some time grokking the changes that were made and independently applying them to 0.7. Having a look at the merge conflicts first might be worth trying though.