Add a separate initializer to ERC721 (with no metadata)

[ericnordelo]

🧐 Motivation
The existing ERC721Component initializer registers both IERC721_ID and IERC721_METADATA_ID, while the IERC721Metadata is described as optional in the EIP. Users could choose not to implement that interface, but if they call the given initializer, this will lead to an inconsistency that could break some UIs.

📝 Details
A second initializer can be added to be used in this case (not registering the IERC721_METADATA_ID). In-code comments and documentation must be detailed about the potential issue and when to use each initializer.