Re-export traits CurveAffine, CurveProjective, EncodedPoint

[webmaster128]

In order to use this library, I had to re-export the following symbols

diff --git a/src/lib.rs b/src/lib.rs
index 4d4c14c..fa98e0d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -28,7 +28,7 @@ pub use self::hash_to_field::{hash_to_field, BaseFromRO, ExpandMsgXmd, ExpandMsg
 pub use self::signum::{Sgn0Result, Signum0};
 
 use fff::{Field, PrimeField, ScalarEngine, SqrtField};
-use groupy::{CurveAffine, CurveProjective};
+pub use groupy::{CurveAffine, CurveProjective, EncodedPoint};
 
 #[cfg(feature = "serde")]
 #[macro_use]

Is this expected? Should I create a PR for that?

[dignifiedquire]

yes makes sense