💥 Implement ERC-1155 Standard Token

[pcaversaccio]

🧙🏼‍♂️ CHANGELOG

Closes #15. In addition to the standard EIP-1155 functionalities, we implement the following features:

• Mintable
• ERC1155Burnable
• ERC1155URIStorage
• ERC1155Supply

🦠 Bug Fixes

• We add to all constructors of the ERC20, ERC721, and ERC1155 contracts, the missing RoleMinterChanged event. Thanks, @jtriley-eth for pointing this out!
• We fix the missing _before_token_transfer and _after_token_transfer hooks & the missing Transfer event in the ERC20 constructor.
• We rename to to owner due to the sake of consistency in the internal mint functions _safe_mint and _mint of the ERC721 contract.
• We add the missing IERC165 function supportsInterface to the interfaces IERC1155, IERC1155MetadataURI, IERC1155Receiver, IERC721Enumerable, IERC721Metadata, and IERC721Permit. We also fix the correct visibility modifier from @pure to @view.
• We refactor the functions transfer_ownership and renounce_ownership in the ERC20, ERC721, and ERC1155 contracts in order to add missing events and automatically remove the previous owner's minter role and assign the minter role to new_owner accordingly.

📝 Improved Documentation

• We add missing EIP links to three ERC721 interfaces:

  • IERC721Enumerable
  • IERC721Receiver
  • IERC721Metadata

• We add a note on return value bounds in Vyper interfaces to three interfaces where this is relevant:

  • IERC721Metadata
  • IERC1155MetadataURI
  • IERC1155

• We add in the ERC20, ERC721, and ERC1155 contract documentation, which functions are view functions.

• Fixes ♻️ Reorder README Sequence #48.

👯‍♀️ Co-Author

Special thanks go to @jtriley-eth who co-authored this PR 🙏🏽. He deserves the cheer!

[pcaversaccio]

@jtriley-eth LFG 🥳