Guide for deploying a non-native Cadence contract & updating legacy association

[sisyphusSmiling]

This guide should cover the planning, development, deployment and registration of a NonFungibleToken contract intended to replace an existing bridged NFT. A project in this scenario will have an existing EVM-native NFT that has been onboarded to the bridge and desire to update the bridged NFT association with their own NonFungibleToken implementation. The end result is their EVM-native ERC721 will be bridged as their self-deployed Cadence NFT and vice versa.