-Adjusted anti player focus to allow better AI logic

-Improved AI intelligence, it will retreat when needed, attack when it has the minimum needed to win.
-Fixed where the AI, even for its last_stand (the last settlement) leaks its colony. From now on he won't run away and will fight until the end

-After several days of testing, new update, which does not bring much change, it is just an improvement in detail.
We try to do our best to fix the shortcomings of CA's AI
-Improved aggressiveness on neighboring tensions, more risks will be taken by the AI ​​without putting themselves in danger or otherwise.
-Fixed the unfortified colony bonus, the AI ​​will be less cautious to attack these colonies (this adjustment is thorough because if it is too accentuated it can make the AI ​​suicidal.)
-And other details

-For everyone's pleasure, the focus has been adapted and settings are different for each level of campaign difficulty:
Easy/Normal: AI focuses equal value human player from another AI faction
Hard: the AI ​​focus on the human player has a slightly higher value (same value since the beginning of the mod's creation)
Very Hard: the AI ​​focuses the human player has a high value
Legendary: the AI focus human player has very high value

Balancing has been done so that the AI ​​keeps logic

- Judgments of strength values ​​of fortified and unfortified settlement sieges have been reviewed and corrected.
From now on the AI ​​will besiege your colony only if you "valiant defeat" minimum, so you will be forced to play the battle to defend yourself and not lose your colony.

- Improvement of the threat presented by an adversary army,

-New big improvement of the AI, its tactics, analysis, strategy etc.
-Improved force analysis during a siege. The AI ​​will not wait for the 10 turns of siege to decide to attack if it has the superiority.
-The AI ​​is once again more active, aggressive, but also defensive, responds and defends against the threat.
-The game is even more like a game of chess