Added the unique skill “Speed Tactic”, “Defense Tactic”, “Resist Tactic”, “Attack Tactic”

The unique skill "Speed Tactic" has been added to Selphina, "Defense Tactic" has been added to Glade, "Resist Tactic" has been added to Amalda, and "Attack Tactic" has been added to Xavier. Units within 3 squares of the holder of this skill will have increased abilities corresponding to the name of the skill.

I made it so that it has a higher command effect on the battlefield, since Auth.★ now affects them even if they do not sortie, and it was no longer worth sending command units.

The skill name is taken from FEH, but there is no class type restriction. This effect is similar to the "Spur" skill in FEH, but as mentioned above, it is named "Tactic" because it is designed to be learned by command units.

Those skills will increase at the end of the calculation. Thus, increasing AS will not change values such as Avo.
The Tactic skill is ineffective if the skill holder is being carried or is in a sleep, berserk, silence, or stone state.
The support effect of the Tactic skill is negated by Saias' Disturb skill.