UP and CoS dungeons

- Utgarde Pinnacle implementation
- Culling of Stratholme implementation
- Added additional value ("nearest hostile npcs") needed to expose some hidden trigger-type npc units (eg. frost breath on Skadi fight in UP)

src/strategy/dungeons/wotlk/utgardepinnacle/UtgardePinnacleActions.cpp

@@ -0,0 +1,61 @@
+#include "Playerbots.h"
+#include "UtgardePinnacleActions.h"
+#include "UtgardePinnacleStrategy.h"
+
+bool AvoidFreezingCloudAction::Execute(Event event)
+{
+    Unit* closestTrigger = nullptr;
+    GuidVector objects = AI_VALUE(GuidVector, "nearest hostile npcs");
+
+    for (auto i = objects.begin(); i != objects.end(); ++i)
+    {
+        Unit* unit = botAI->GetUnit(*i);
+        if (unit && unit->GetEntry() == NPC_BREATH_TRIGGER)
+        {
+            if (!closestTrigger || bot->GetExactDist2d(unit) < bot->GetExactDist2d(closestTrigger))
+            {
+                closestTrigger = unit;
+            }
+        }
+    }
+
+    if (!closestTrigger) { return false; }
+
+    float distance = bot->GetExactDist2d(closestTrigger->GetPosition());
+    float radius = 3.0f;
+    // Large buffer for this - the radius of the breath is a lot smaller than the graphic, but it looks dumb
+    // if the bot stands just outside the hitbox but still visibly in the cloud patches.
+    float distanceExtra = 3.0f;
+
+    if (distance < radius + distanceExtra - 1.0f)
+    {
+        // bot->Yell("MOVING", LANG_UNIVERSAL);
+        return MoveAway(closestTrigger, radius + distanceExtra - distance);
+    }
+
+    return false;
+}
+
+bool AvoidSkadiWhirlwindAction::Execute(Event event)
+{
+    Unit* boss = AI_VALUE2(Unit*, "find target", "skadi the ruthless");
+    if (!boss) { return false; }
+
+    float distance = bot->GetExactDist2d(boss->GetPosition());
+    float radius = 5.0f;
+    float distanceExtra = 2.0f;
+
+    if (distance < radius + distanceExtra)
+    {
+        if (botAI->IsTank(bot))
+        {
+            // The boss chases tank during this, leads to jittery stutter-stepping
+            // by the tank if we don't pre-move additional range. 2*radius seems ok
+            return MoveAway(boss, (2.0f * radius) + distanceExtra - distance);
+        }
+        // else
+        return MoveAway(boss, radius + distanceExtra - distance);
+    }
+
+    return false;
+}