Update traits, add wrappers, and upgrade secp256k1 implementation

Cargo.toml

@@ -19,10 +19,11 @@ digest = "0.8.1"
 ff-zeroize = "0.6.3"
 funty = "=1.1.0"
 generic-array = "0.14"
-hex = "0.4"
+hex = { version = "0.4", features = ["serde"] }
 hmac = "0.7.1"
+thiserror = "1"
 merkle-sha3 = "^0.1"
-lazy_static = "1.4.0"
+lazy_static = "1.4"
 num-traits = "0.2"
 num-integer = "0.1"
 pairing-plus = "0.19"
@@ -33,7 +34,6 @@ serde = { version = "1.0", features = ["derive"] }
 serde_derive = "1.0"
 sha2 = "0.8.0"
 sha3 = "0.8.2"
-thiserror = "1"
 zeroize = "1"
 
 rust-gmp-kzen = { version = "0.5", features = ["serde_support"], optional = true }

src/elliptic/curves/mod.rs

@@ -1,6 +1,11 @@
-pub mod bls12_381;
-pub mod curve_ristretto;
-pub mod ed25519;
-pub mod p256;
+// pub mod bls12_381;
+// pub mod curve_ristretto;
+// pub mod ed25519;
+// pub mod p256;
 pub mod secp256_k1;
-pub mod traits;
+
+mod traits;
+mod wrappers;
+
+pub use self::secp256_k1::Secp256k1;
+pub use self::{traits::*, wrappers::*};