Airlocks and Lockers take time to weld and unweld

fixes #3902

Welding and unwelding an airlock or locker takes the same time as removing the airlock electronics.
Sound added to Starting the weld, and ending the weld (the start sound is at 40% because it is LOUD)
Feedback message for the user.
Feedback messages for viewers as welding is a VERY obvious task.