WIP: Ixon serialization rewrite with large speed and size reduction

src/ix.rs

@@ -6,6 +6,7 @@ pub mod env;
 pub mod graph;
 pub mod ground;
 pub mod ixon;
+pub mod ixon_old; // Temporary: old ixon module for migration
 pub mod mutual;
 pub mod store;
 pub mod strong_ordering;

src/ix/address.rs

@@ -12,6 +12,9 @@ impl Address {
   pub fn from_slice(input: &[u8]) -> Result<Self, TryFromSliceError> {
     Ok(Address { hash: Hash::from_slice(input)? })
   }
+  pub fn from_blake3_hash(hash: Hash) -> Self {
+    Address { hash }
+  }
   pub fn hash(input: &[u8]) -> Self {
     Address { hash: blake3::hash(input) }
   }