derailvalley New Mod request: Random states for all engines +1 challenge

[Stikikeys]

This mod request will add some cool new challenges for the player. You will now find the diesels or steamer in a random state. So for example the steamer would need to be topped up with water or coal because the previous driver "forgot" to do that. So before starting your job you have to manually service that locomotive. Another scenario is, your shunter could be low on fuel or the engine hasn't been serviced for 20 years, so off to the service bay with it before you set off.