Added german localization (by Tanobi)

• Some code and error.log clean up
  
• Fixed a missing localization for attacker's vassals
  
• Improved and fixed the variable uses

Added russian translation made by Д.Р.У.И.Д.
Added edit of CK3 patch ver. 1.4.2 of no stress gain for ambitious defenders on white peace.

Fixed Bug:
Being in two wars at the same time and betraying your liege both times may result in losing the set variable and the game won't register you as a betrayer for keeping your land on the second peace deal.
Done by better variable management for setting, checking and removing the values.

Game rule Defend Realm - Mode

• Invasion: This mod only works for invasion casus belli.
  
• + Holy War: This mod works for invasion casus belli and holy war (against kingdom) casus belli.

Updated to work with CK3 version 1.4.

Fixed a bug, where invading counts would not get every title they should get after a successful invasion.

New game rule added, where an attacker of an invasion may mobilize his/her vassals as well. Vassals may join or not, depending on multiple factors. Joining vassals will (based on their contribution) want some rewards.

• War contribution between 100 and 299 gives them a weak claim on the attacker.
  
• War contribution between 300 and 599 gives them a strong claim on the attacker.
  
• War contribution higher than 600 let them desire a title. The AI will give them a title automatically after the war, the player must do it manually. If the player doesn't give them a title within 2 years, the subject will get a -100 opinion loss.

Hotfix:
renamed this mod's opinion_modifiers file. It was overwriting the original one for wars.

Added the default english localization to some other languages as well.

Fixed faulty localisation (Screenshot 8).

New game rule, where the vassals of the invaded top liege can chose to betray him and the realm and join the attacker. If they are a lower rank than the attacker, they will become his/her new vassal, else they will keep their titles even if the invasion succeeds. The invaded liege gets an imprisoning and title revocation reason and a huge opinion hit of these vassals.

I had to rewrite the on_victory of the invasion casus belli for it to work the way I wanted it. I tried to reimplement the default behavior, but couldn't model it 1:1. If an duke would lose all his county titles will now become landless, even if he/she still have some vassals outside of the dejure challenged titles.