Export CK3 titles for EU4-to-Vic3 converter

[IohannesIohannium]

We should output a file /vic3_converter/ck3_title_equivalences.txt, with this syntax, TAG;x_title;abcgfx.
The converter automatically outputs relevant lines for all countries generated in EU4.
TAG is EU4 generated tag (e.g. X00), x_title is the CK3 title it comes from (e.g. k_arabia), abcgfx is the EU4 gfxculture assigned to that tag.
If we output this, we need not port over the extensive library of EU4-to-Vic2 localization-based flag-matching, just needing that feature to be reduced to few cases (e.g. "Abbasids" should override k_arabia, non-vanilla EU4 "Yugoslavia" should be matched with Vic3 Yugoslavia)

[IohannesIohannium]

Due to ParadoxGameConverters/EU4ToVic3#89, we may also export the CK3 rank, with Empire, Kingdom, Grand Principality, Principality assigned to Empires, Kingdoms, Duchies, Counties

[Idhrendur]

Probably better to use the pdx script format. We can parse it easily and add more fields as needed.

[Elfangor567]

Considering how much can happen in EU4, is probably not a good idea. What was once a duchy is now an Empire. I don't see how using CK3 data would be useful at any point in time.