Implement a separate ERC721 and EIP2981 with the full and strict interface of EIP721

[liron-navon]

🧐 Motivation
The current ERC721 interface from openzepplin is deviating from the standard EIP721 interface, we need to make NFTs with royalties support, so we need functions like "safeTransferFrom" to be "payable".

📝 Details
Open zepplin is missing some contract information to allow to create ERC721 that implement royalties, I'd like to suggest the implementation of the strict EIP721 as defined here: https://eips.ethereum.org/EIPS/eip-721
And the EIP2981 as defined here: https://eips.ethereum.org/EIPS/eip-2981

[Amxx]

duplicate of #2610

[frangio]

Note that ERC-2981 was merged yesterday (#3012), it will be included in the next release.