Add translation for doorway signs

[eadmaster]

example:

not sure were these are located in the code, but they are not translated in the current script.

EDIT: seems to be stored as GFX objects, they may be translated with icons instead of text.

[MiYakuGaming]

The Text says "Medicine Shop" or "Pharmacy", not sure about "Pharmacy" since this is more Medieval.

[eadmaster]

Reportedly these are stored as GFX objects composed of multiple elements.

Guide: Let's replace Sega Saturn graphics