Massive rework of the code. Now all vanilla cultures can be inherited regardless if the tag is from vanilla or mods.

Launch version, could only handle these tags to inherit Primary Cultures:

• France → Central Europe (+inherits French, Breton, Occitan, Franco-Provençal)
  
• Yugoslavia → Central Europe (+inherits Serbian, Breton, Croatian, Bosniak)
  
• Danubian State → Central Europe (+inherits Hungarian, Romanian, Croatian, Slovak)
  
• Italy → Central Europe (+inherits South Italian)
  
• Switzerland → Central Europe (+inherits Franco-Provençal)
  
• Czechoslovakia → Central Europe (+inherits Slovak)
  
• Harar → Ethiopia (+inherits Somali)
  
• Sidamo/Kaffa/Borana → Ethiopia (+inherits Sidama)
  
• Aussa → Ethiopia (+inherits Afar)
  
• Philippines → Iberia (+inherits Filipino)
  
• Ulster → Ireland (+inherits Scottish)
  
• Columbia District → Canada (+inherits Yankee)
  
• Columbia District → USA/FSA (+inherits Anglo-Canadian)
  
• Afghanistan → Turkestan (+inherits Pashtun)
  
• Afghanistan → Pakistan/India (+inherits Tajik)
  
• Luxembourg → United Netherlands → Germany (+inherits Dutch, Flemish, Wallonian)
  
• Schleswig → North German Federation → Scandinavia → Central Europe (+inherits Danish, Swedish, Norwegian, Icelandic)