Update contract to use diamond storage

[Vectorized]

This is a breaking change.

• Delete scripts/replace-imports.js.
• Update scripts/transpile-merge.sh to use @gnus.ai/upgrade-safe-transpiler-diamond.
• Update package.json to use @gnus.ai/upgrade-safe-transpiler-diamond.
• Removed OpenZeppelin from package.json.

Due to the high likelihood of namespace collision when someone uses OpenZeppelin Upgradeable repo with this PR, the following re-namings are automatically done:

• contracts/Initializable.sol -> contracts/ERC721A__Initializable.sol
• contracts/InitializableStorage.sol -> contracts/ERC721A__InitializableStorage.sol
• modifer initializer -> modifier initializerERC721A
• modifer onlyInitializing -> modifier onlyInitializingERC721A

When inheriting from ERC721AUpgradeable and a OpenZeppelin Upgradeable contract, the initializer must have both the initializerERC721A and initializer modifiers.

pragma solidity ^0.8.4;

import 'erc721a-upgradeable/contracts/ERC721AUpgradeable.sol';
import '@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol';

contract Something is ERC721AUpgradeable, OwnableUpgradeable {
  function initialize() initializerERC721A initializer public {
    __ERC721A_init('Something', 'SMTH');
    __Ownable_init();
  }

  function adminMint(uint256 quantity) external payable onlyOwner {
    // _safeMint's second argument now takes in a quantity, not a tokenId.
    _safeMint(msg.sender, quantity);
  }
}

Issue: chiru-labs/ERC721A#267

[xpluscal]

Can you please update the README / docs. Took me some time to find this :) (Current one fails with contract is not initializing

[mataide]

Remove the ",":

pragma solidity ^0.8.4;

import 'erc721a-upgradeable/contracts/ERC721AUpgradeable.sol';
import '@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol';

contract Something is ERC721AUpgradeable, OwnableUpgradeable {
  function initialize() initializerERC721A initializer public {
    __ERC721A_init('Something', 'SMTH');
    __Ownable_init();
  }

  function adminMint(uint256 quantity) external payable onlyOwner {
    // _safeMint's second argument now takes in a quantity, not a tokenId.
    _safeMint(msg.sender, quantity);
  }
}