Added the unique skill "Ruggedness"

The unique skill “Ruggedness” has been added to Marty. Holders of this skill will not increase their fatigue when attacked by an enemy.

This effect is inspired by Marty's personality and his high physical strength. Marty is always very relaxed, so it should be plausible that he would not be fatigued by an enemy attack.

Marty's defense is very high, and sometimes you want to use him as a tank, and he can be useful in those cases.

It will make better to let the enemy attack him, so it lead a strange operating, but it would be fun to have the player embody Marty's character of not wanting to move on his own.

When he appears as an enemy, this effect is applied during the Player Phase.