Add `GetTrader()` command to trading component

sources/Gameplay/BaseClasses/KillingFloor/Frontend/Trading/ATradingComponent.uc

@@ -92,6 +92,16 @@ public final function Trading_OnSelect_Slot OnTraderSelected(
  */
 public function array<ETrader> GetTraders();
 
+/**
+ *  Returns a trader with a given name `traderName`.
+ *  If several traders are assigned the same name - returns any arbitrary one.
+ *
+ *  @param  traderName  Name of the trader to return. Case-sensitive.
+ *  @return `ETrader` with a given `traderName`. `none` if either `traderName`
+ *      is `none` or there is no trader with such a name.
+ */
+public function ETrader GetTrader(Text traderName);
+
 /**
  *  Checks whether trading is currently active.
  *

sources/Gameplay/KF1Frontend/Trading/KF1_TradingComponent.uc

@@ -84,6 +84,26 @@ public function array<ETrader> GetTraders()
     return result;
 }
 
+public function ETrader GetTrader(Text traderName)
+{
+    local int   i;
+    local Text  nextTraderName;
+    if (traderName == none) {
+        return none;
+    }
+    for (i = 0; i < registeredTraders.length; i += 1)
+    {
+        nextTraderName = registeredTraders[i].GetName();
+        if (traderName.Compare(nextTraderName))
+        {
+            _.memory.Free(nextTraderName);
+            return ETrader(registeredTraders[i].Copy());
+        }
+        _.memory.Free(nextTraderName);
+    }
+    return none;
+}
+
 public function bool IsTradingActive()
 {
     local KFGameType kfGame;