Move all vm internals out

lib/api/src/externals/memory.rs

@@ -143,6 +143,21 @@ impl Memory {
     }
 
     /// Attempts to clone this memory (if its clonable) in a new store
+    pub fn clone_in_store(
+        &self,
+        store: &impl AsStoreRef,
+        new_store: &mut impl AsStoreMut,
+    ) -> Option<Self> {
+        if !self.ty(store).shared {
+            // We should only be able to duplicate in a new store if the memory is shared
+            return None;
+        }
+        self.0
+            .try_clone(&store)
+            .map(|new_memory| Self::new_from_existing(new_store, new_memory.into()))
+    }
+
+    /// Attempts to duplicate this memory (if its clonable) in a new store
     pub fn duplicate_in_store(
         &self,
         store: &impl AsStoreRef,