Add utility AI (#806)

Co-authored-by: Pieter-Jan Briers <pieterjan.briers@gmail.com>
Co-authored-by: Metal Gear Sloth <metalgearsloth@gmail.com>
Co-authored-by: Pieter-Jan Briers <pieterjan.briers+git@gmail.com>

Content.Server/GameObjects/Components/Weapon/Melee/MeleeWeaponComponent.cs

@@ -38,7 +38,8 @@ namespace Content.Server.GameObjects.Components.Weapon.Melee
         private float _arcWidth;
         private string _arc;
         private string _hitSound;
-        private float _cooldownTime;
+        public float CooldownTime => _cooldownTime;
+        private float _cooldownTime = 1f;
 
         [ViewVariables(VVAccess.ReadWrite)]
         public string Arc