Change the order of year month on edit UI according to the environment settings

[Ranran(retired)]

I would like to take this opportunity to thank Leartin for updating the edit UI.

This is a small issue, but people in Asian countries such as Japanese prefer the order of year months.
Since there is already such a setting in simutrans, this patch will change the order of the inputs in the edit UI to change according to the environment settings.

[Leartin]

Certainly, I forgot about that setting entirely.

[Dwachs]

thank you, in r9625.