feat: implement From<Signature> for Identity for convenient conversions of owned types.

Author: Byron

gix-actor/src/identity.rs

@@ -53,7 +53,7 @@ mod write {
 }
 
 mod impls {
-    use crate::{Identity, IdentityRef};
+    use crate::{Identity, IdentityRef, Signature, SignatureRef};
 
     impl Identity {
         /// Borrow this instance as immutable
@@ -80,4 +80,16 @@ mod impls {
             other.to_ref()
         }
     }
+
+    impl From<Signature> for Identity {
+        fn from(Signature { name, email, time: _ }: Signature) -> Self {
+            Identity { name, email }
+        }
+    }
+
+    impl<'a> From<SignatureRef<'a>> for IdentityRef<'a> {
+        fn from(SignatureRef { name, email, time: _ }: SignatureRef<'a>) -> Self {
+            IdentityRef { name, email }
+        }
+    }
 }