On Cargo Arrived, Player should be presented with choice to confirm or reset route

[Josh Elster]

Describe the solution you'd like
Title pretty much covers it. Choice is a yes/no type of decision and probably should be made using GUI elements

Criteria for completion

• Pop-up message box displays when either the onCargoArrived or onCargoDestroyed observables fire
• Message Box asks player to either confirm (keep) the simulated route or reset (reject) it
• On rejection, the route planning screen is reset as normal
• On accept, the screen transitions off
• UI Sound feedback is different for yes/no options
• Visual button interaction feedback
• Player does not get an option to confirm the route onCargoDestroyed, only Reset/Quit (see #64)