release: 1.1.0 with solidity 0.8 bump

[gvladika]

This PR adds transition of all smart contracts from old 0.6.x Solidity version to 0.8.17.

Includes:

• use ^0.8.0; pragma for all contracts, and <0.9.0 for interfaces
• Solidity 0.8.17 set in compiler config
• use custom version of ERC20Upgradeable (and ERC20PermitUpgradeable) to avoid storage layout changes
• fix compilation errors and warnings
• add storage layout checker to CI

Reason why custom version of ERC20Upgradeable is used instead of OpenZeppelin implementation directly is following - Openzeppelin removed _decimals storage variable in ERC20Upgradeable when they did their upgrade to 0.8 (commit here). They hard-coded decimals to 18 in getter, and if you want different number you have to store decimals yourself and override decimals() function. This is an issue because we're using ERC20Upgradeable as base for bridged standard ERC20 tokens (when token is 1st time bridged to L2 we automatically create token contract on L2). Beacon proxy is used which means there's a single implementation contract for all the bridged tokens out there (via standard bridge).
Solution we used is -> copy paste Openzeppelin's ERC20Upgradeable locally, put back decimals variable and getter and setter, and use that contract as base for aeERC20/StandardArbERC20 instead of OZ import.

Also include a few other PR e.g.

• Add support for Orbit token bridge #34
• Token bridge factory #36
• Bump executor to support CALL #45
• Update local deployment scripts #46
• Add multicall getters #47
• Update deployer script to provide multicall #48