added an error popup in the game if autoreplace fails to refit
Since it's only triggered by conditions bugs can trigger, it works kind of like a non-fatal assert in builds without asserts
STR_REPLACE_ENGINE_WAGON_SELECT_HELP :{BLACK} EXPERIMENTAL FEATURE {}Switch between engine and wagon replacement windows.{}Wagon replacement will only be done if the new wagon can be refitted into carrying the same type of cargo as the old one. This is checked for each wagon when the actual replacement takes place.
STR_REPLACE_ENGINE_WAGON_SELECT_HELP :{BLACK} EXPERIMENTAL FEATURE {}Switch between engine and wagon replacement windows.{}Wagon replacement will only be done if the new wagon can be refitted into carrying the same type of cargo as the old one. This is checked for each wagon when the actual replacement takes place.
STR_ENGINE_NOT_BUILDABLE :{WHITE}Engine is not buildable
STR_ENGINE_NOT_BUILDABLE :{WHITE}Engine is not buildable