feat: 4337 integration

[yagopv]

What it solves

4337 integration in the Safe{Core} SDK

How this PR fixes it

Adding a new Safe4337Pack enabling:

• Creation of Safe Accounts with the 4337 module enabled
• Executing transaction batches using a bundler (Pimlico)
• Executing transaction batches using a paymaster to cover gas fees

BREAKING CHANGES

It won't create inmediate breaking changes as both method signatures will be supported via overload

• relay-kit
  • Rename relayKit.createRelayedTransaction to relayKit.createTransaction
  • Rename relayKit.executeRelayTransaction to relayKit.executeTransaction
  • getEstimateFee receives an object instead of multiple parameters

[coveralls]

Pull Request Test Coverage Report for Build 8688623143

Details

• 230 of 248 (92.74%) changed or added relevant lines in 10 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+4.3%) to 78.812%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
packages/relay-kit/src/packs/safe-4337/utils.ts	8	10	80.0%
packages/relay-kit/src/packs/gelato/GelatoRelayPack.ts	6	11	54.55%
packages/relay-kit/src/packs/safe-4337/Safe4337Pack.ts	146	157	92.99%
<!--	Total:	230	248	92.74%	-->

Totals
Change from base Build 8686829311:	4.3%
Covered Lines:	704
Relevant Lines:	838

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💛 - Coveralls