• Added RemoveImmunityName variable to be able to remove immunity without removing all of them.
  
• Renamed ImmunityName variable to AddImmunityName.
  
• Renamed RemovePreviousImmunity to RemoveOriginalImmunity.

Separated the default changes to be more usable by other mods.

• Added 'RemovePreviousImmunity' variable. If set to true it will remove the unit previous immunities before setting the new ones. Set to false it will only add the new ones.
  
• Removed Commander Avatar previously added immunities.

Initial release.