Add Support for Offshore Pumps

[KeinNiemand]

Currently offshore pumps are not supported, because they require special logic to work. Add support for offshore pumps (including modded offshore pumps) landfill should only be placed on the part of the offshore pump that needs to be on land.

If possible add also place ghost water fill (if a water fill mod is installed) to the part of pumps that needs to be in water.