Smash Ciphersuite definitions into their own crates

Uses dalek-ff-group for Ed25519 and Ristretto. Uses minimal-ed448 for Ed448.
Adds ciphersuite-kp256 for Secp256k1 and P-256.

crypto/schnorr/Cargo.toml

@@ -36,7 +36,7 @@ rand_core = { version = "0.6", features = ["std"] }
 sha2 = "0.10"
 
 dalek-ff-group = { path =  "../dalek-ff-group" }
-ciphersuite = { path = "../ciphersuite", features = ["ed25519"] }
+ciphersuite = { path = "../ciphersuite" }
 
 [features]
 aggregate = ["transcript"]

crypto/schnorr/src/tests/mod.rs

@@ -3,9 +3,10 @@ use core::ops::Deref;
 use zeroize::Zeroizing;
 use rand_core::OsRng;
 
+use dalek_ff_group::Ed25519;
 use ciphersuite::{
   group::{ff::Field, Group},
-  Ciphersuite, Ed25519,
+  Ciphersuite,
 };
 use multiexp::BatchVerifier;
 

crypto/schnorr/src/tests/rfc8032.rs

@@ -5,8 +5,8 @@
 
 use sha2::{Digest, Sha512};
 
-use dalek_ff_group::Scalar;
-use ciphersuite::{group::GroupEncoding, Ciphersuite, Ed25519};
+use dalek_ff_group::{Scalar, Ed25519};
+use ciphersuite::{group::GroupEncoding, Ciphersuite};
 
 use crate::SchnorrSignature;