zkp: Add Musig2 module

squash! zkp: Add Musig2 module

Remove agg_pk from KeyAggCache

Co-authored-by: sanket1729 <[email protected]>

Author: GeneFerneau

src/zkp/mod.rs

@@ -1,5 +1,10 @@
 mod ecdsa_adaptor;
 mod generator;
+#[cfg(feature = "std")]
+mod musig;
+#[cfg(feature = "std")]
+pub use self::musig::new_musig_nonce_pair;
+
 #[cfg(feature = "std")]
 mod pedersen;
 #[cfg(feature = "std")]
@@ -12,6 +17,8 @@ mod whitelist;
 pub use self::ecdsa_adaptor::*;
 pub use self::generator::*;
 #[cfg(feature = "std")]
+pub use self::musig::*;
+#[cfg(feature = "std")]
 pub use self::pedersen::*;
 #[cfg(feature = "std")]
 pub use self::rangeproof::*;