[DONE][Suggestion] Option for retaliation UFO to ignore base defenses

[Meridian]

This feature adds the ability for aliens to ignore the base defenses (e.g. Missile defenses, Plasma defenses, etc.)

Syntax: A new boolean attribute on alien missions: `ignoreBaseDefenses: true` , default is false

It works for the standard Retaliation mission objective as well as the new Instant Retaliation mission objective: https://openxcom.org/forum/index.php/topic,10808.0.html

Example:

Code: [Select]

alienMissions:
  - type: STR_ALIEN_RETALIATION_FROM_THE_SKIES
    ignoreBaseDefenses: false

  - type: STR_ALIEN_RETALIATION_FROM_THE_GROUND
    ignoreBaseDefenses: true