feat: add repo.references().pseudo() for traversing refs like HEAD and FETCH_HEAD.

Author: Byron

gix/src/reference/iter.rs

@@ -32,7 +32,8 @@ impl<'r> Iter<'r> {
 }
 
 impl Platform<'_> {
-    /// Return an iterator over all references in the repository.
+    /// Return an iterator over all references in the repository, excluding
+    /// pseudo references.
     ///
     /// Even broken or otherwise unparsable or inaccessible references are returned and have to be handled by the caller on a
     /// case by case basis.
@@ -69,6 +70,12 @@ impl Platform<'_> {
         ))
     }
 
+    // TODO: tests
+    /// Return an iterator over all local pseudo references.
+    pub fn pseudo_refs(&self) -> Result<Iter<'_>, init::Error> {
+        Ok(Iter::new(self.repo, self.platform.psuedo_refs()?))
+    }
+
     // TODO: tests
     /// Return an iterator over all remote branches.
     ///