Added cache into standalone app

lib/runtime-core/src/module.rs

@@ -56,8 +56,6 @@ pub struct ModuleInfo {
 
     pub namespace_table: StringTable<NamespaceIndex>,
     pub name_table: StringTable<NameIndex>,
-
-    pub wasm_hash: WasmHash,
 }
 
 /// A compiled WebAssembly module.
@@ -116,6 +114,14 @@ impl Module {
     }
 }
 
+impl Clone for Module {
+    fn clone(&self) -> Self {
+        Self {
+            inner: Arc::clone(&self.inner),
+        }
+    }
+}
+
 impl ModuleInner {}
 
 #[doc(hidden)]