Crew AI fixes:

- Characters can use oxygenite shards (or any other item with an "oxygensource" tag) in diving suits/masks.
- AIObjectiveFindDivingGear doesn't count as being completed if the character has diving gear in their inventory unless the character has equipped the gear.
- AIObjectiveGetItem doesn't count as being completed if equipping the target item is required and the character hasn't equipped it yet.

Barotrauma/BarotraumaShared/Source/Items/Inventory.cs

@@ -143,10 +143,21 @@ namespace Barotrauma
         public Item FindItem(string itemName)
         {
             if (itemName == null) return null;
-
             return Items.FirstOrDefault(i => i != null && (i.Prefab.NameMatches(itemName) || i.HasTag(itemName)));
         }
 
+        public Item FindItem(string[] itemNames)
+        {
+            if (itemNames == null) return null;
+
+            foreach (string itemName in itemNames)
+            {
+                var item = FindItem(itemName);
+                if (item != null) return item;
+            }
+            return null;
+        }
+
         public virtual void RemoveItem(Item item)
         {
             if (item == null) return;