Add support for FROST

[chris-wood]

FROST is an emerging protocol for threshold Schnorr signature generation. We should add experimental support here so folks can play around with it.

[alexandreLamarre]

Was any progress made on this?

If this is still something that would be nice to have, I'd be interested in taking a look

[chris-wood]

@alexandreLamarre that would be fantastic! Please let me know if you need any help. The latest spec, which is undergoing change, can be found here.

[armfazh]

Good news! we have one first version at #349
cc: @alexandreLamarre

[alexandreLamarre]

Awrsome! Should be fun to play around with