Adding AdditiveGroup and PrimeGroup (#159)

Co-authored-by: Michele Orrù <michele.orru@berkeley.edu>
Co-authored-by: Weikeng Chen <w.k@berkeley.edu>
Co-authored-by: Pratyush Mishra <pratyushmishra@berkeley.edu>

bls12_381/benches/bls12_381.rs

@@ -1,5 +1,4 @@
 use ark_algebra_bench_templates::*;
-
 use ark_bls12_381::{
     fq::Fq, fq2::Fq2, fr::Fr, Bls12_381, Fq12, G1Projective as G1, G2Projective as G2,
 };

bls12_381/src/curves/g1.rs

@@ -4,9 +4,9 @@ use ark_ec::{
     hashing::curve_maps::wb::{IsogenyMap, WBConfig},
     models::CurveConfig,
     short_weierstrass::{Affine, SWCurveConfig},
-    AffineRepr, Group,
+    AffineRepr, PrimeGroup,
 };
-use ark_ff::{Field, MontFp, PrimeField, Zero};
+use ark_ff::{AdditiveGroup, MontFp, PrimeField, Zero};
 use ark_serialize::{Compress, SerializationError};
 use ark_std::{ops::Neg, One};
 

bls12_381/src/curves/g2.rs

@@ -6,9 +6,9 @@ use ark_ec::{
     hashing::curve_maps::wb::{IsogenyMap, WBConfig},
     models::CurveConfig,
     short_weierstrass::{Affine, Projective, SWCurveConfig},
-    AffineRepr, CurveGroup, Group,
+    AffineRepr, CurveGroup, PrimeGroup,
 };
-use ark_ff::{Field, MontFp, Zero};
+use ark_ff::{AdditiveGroup, Field, MontFp, Zero};
 use ark_serialize::{Compress, SerializationError};
 
 use super::{

bls12_381/src/curves/tests/mod.rs

@@ -1,5 +1,5 @@
 use ark_algebra_test_templates::*;
-use ark_ec::{AffineRepr, CurveGroup, Group};
+use ark_ec::{AffineRepr, CurveGroup, PrimeGroup};
 use ark_ff::{fields::Field, One, UniformRand, Zero};
 use ark_serialize::{CanonicalDeserialize, CanonicalSerialize, Compress, Validate};
 use ark_std::{rand::Rng, test_rng, vec};

bls12_381/src/fields/tests.rs

@@ -1,4 +1,5 @@
 use ark_algebra_test_templates::*;
+use ark_ec::AdditiveGroup;
 use ark_ff::{
     biginteger::{BigInt, BigInteger, BigInteger384},
     fields::{FftField, Field, Fp12Config, Fp2Config, Fp6Config, PrimeField},