Account Abstraction & Governance roadmap

[Amxx]

### Tasks
- [x] AA base framework
- [x] 7702 support
- [x] 7579 modularity
- [ ] 6900 Modularity
- [ ] Modules: Multisig
- [x] Modules: P256 & RSA
- [ ] Governance: voting module
- [ ] https://github.com/OpenZeppelin/openzeppelin-community-contracts/issues/52