feat: script by hash reducer

[MartinSchere]

In progress

• Finds the script in the witness set
• Hashes it to get the key and stores it using the LastWriteWins CRDT
• Had to remove some #[cfg(feature = "unstable")] as it was skipping some stuff in my linter

[MartinSchere]

I could get the correct information to send_set_add, however, for some reason, it's not getting stored to Redis. I probably missed some boilerplate regarding that.

[matiwinnetou]

I had the same issue, when something is part of cfg unstable, linter skips this in vscode (rust-analyzer)

[scarmuega]

if you're using VSCode, try adding "rust-analyzer.cargo.features": "all" to you settings.json