RimTrans v0.21.9.13

Program for extraction language files from RimWorld mods for edition and translation.

Source of original code which I used: https://github.com/RimWorld-zh/RimTrans

Mine edits:

1. Now "Defs" folders are searched in subfolders of mod versions.
2. Search goes from the folder with the newest version to the older one.
3. Fixed 1 syntax error.