Add clone method to Reply (#290)

* Add clone method to Reply

Signed-off-by: Alejandro Hernández Cordero <[email protected]>

* Fixed docs

Signed-off-by: Alejandro Hernández Cordero <[email protected]>

* fix

Signed-off-by: Alejandro Hernández Cordero <[email protected]>

* feedback

Signed-off-by: Alejandro Hernández Cordero <[email protected]>

---------

Signed-off-by: Alejandro Hernández Cordero <[email protected]>

Author: ahcorde

include/zenoh/api/reply.hxx

@@ -84,7 +84,16 @@ class Reply : public Owned<::z_owned_reply_t> {
         return {};
     }
 #endif
+
+    /// @brief Construct a shallow copy of this Reply.
+    ///
+    /// The reply will be sent only when the last clone is destroyed.
+    Reply clone() const {
+        Reply reply(zenoh::detail::null_object);
+        ::z_reply_clone(&reply._0, interop::as_loaned_c_ptr(*this));
+        return reply;
+    };
 };
 
 }  // namespace zenoh
-#endif
+#endif