Added methods for AGVs to park and leave from seaship and inlandship
Merge pull request #85 from thomw201/agvshipplatformpaths

Added methods for AGVs to park and leave from seaship and inlandship
Dockingcranes can fill the ship. And they move back to startlocation.
Merge pull request #86 from jeroen940/FillBoat

Dockingcranes can fill the ship. And they move back to startlocation.
Skybox!!!
Thicker platform
Wagons from the Train class are added to a list for easy accessibility. And TrainCrane can now put containers on the train.
Truckcranes can now move a container from an Agv to a lorry.
Merge pull request #87 from jeroen940/Skybox

Skybox!!!
Merge pull request #88 from jeroen940/TrainAndLorryCranes

Train and lorry cranes can now put a container on the lorry/train