NFTs: Owner should be able to destroy NFT

[mochet]

Problem

Although there is an extrinsic that allows for NFTs to be destroyed it is currently filtered (https://discord.com/channels/811216481340751934/1035125137030254603/1189120616037630053). For many reasons the owner of an NFT may want to delete the NFT and this ability is apparently common on many other blockchains.

Solution

Add the ability for the current owner of an NFT to destroy it

Complications

• Should this also destroy the video?
• If it doesn't destroy the video, should the original video owner be able to reissue it as an NFT?

[mochet]

It should be noted that one way to solve this is to add the ability to "hide NFT": https://github.com/Joystream/atlas/issues/4365 However I think this would only really be possible at the app level, which creates a predicament where an NFT owner may want to hide the NFT on all platforms.