Repair Vic3 Terrain Map

[gawquon]

Fix the Vic3 Terrain Map using https://github.com/linnest2020/vic3-mapdata-editor and the EU4 Terrain Map from in-game full world screenshot.

[gawquon]

When converting, use a file provided by Vic3 mod if at all possible, then use one in configurables.

• grab the full file name and then do a string match for something like "mod" or "workshop"

[gawquon]

Or just use decentralized world folder for the override