Reorganized the customization of nation flags.
Now using a palette of colors instead of hue + 2nd color for the flag symbol.
Removed old placeholders and started adding the new final flag icons.
Also fixed various issues.



Flags
v0.0.14.x
- reorganized nation flag customization, now using a color palette and with 2 colors: flag and symbol
- replaced placeholder flag symbols with new final ones
- flag icon lines color will auto-invert from black to white to adapt the filling color
- reduced victory points from score
- dead nation now removed from the score
- carriers no longer spawned for free when evacuating a region
- fixed resources not consummed when located in warehouses being upgraded
- fixed renegociating treaty with 'join faction' causing an error
- fixed culture transfers when disbanding troops not working in some cases
- fixed cultural problems when taking over an abandonned territory
- fixed cultural problems with the succession start
- fixed asking to terminate treaties not working
- fixed table display missing line highlights
- fixed explored map not updating properly in some cases
- fixed issues with trade routes from the world map
- fixed ownership issues with claiming previously settled territories
- fixed formation inventory not being auto-unloaded when disbanding the last troop