Deprecate and archive package

[NicolasDorier]

Those two features were present for a long in Bitcoin Core, but has been scarcely used over the years.

However, this is going to change with AOPP who directly link at this code in the protocol's implementation.

I think it is time for this signature protocol to retire before it is misused.

[junderw]

Related: bitcoin/bitcoin#24186

[mrtestyboy781]

@junderw are you thinking to eventually support BIP-322 with this library then? (not suggesting, just curious)

[junderw]

Last time I looked into it, it requires a script interpreter... so the bar is set quite high...

[junderw]

I think it also requires access to the UTXO set...

[ChrisCho-H]

@mrtestyboy781 I was also looking for bip322 js library, and just end up implementing it by myself. If you need you can use it
https://github.com/ChrisCho-H/bitcoin-sdk-js/blob/main/test/crypto.spec.ts#L87