Another Merchant gameplay attempt (#1308)

* setup UI

* setup debug data

* graph control setup

* reputation trade component

* unlocking logic

* smoe real reputation costing

* remove sponsors part, add trading specific UI nodes

* port to default pricing system

* buy cooldown

* fuck off trading cabinets

* real good cooldown UI

* Cool unlock sound

* reputation earning

* cool purchare sound

* coin & sprite work

* delete old guidebooks

* cool purcharing VFX

* better ui

* victoria gardens

* Update migration.yml

* Update migration.yml

* cooldown removed

* contracts

* Update migration.yml

* remove CP14Material

* materials appraise

* food appraise

* auto economy pricing system

* alchemy reagents appraise

* coins resprite

* alchemy appraise 2

* modular weapon appraise

* selling platform

* Update PricingSystem.cs

* Update CP14TradingPlatformSystem.cs

* merchants returns + map update

* Update CP14StationEconomySystem.Price.cs

Content.Shared/_CP14/MagicEnergy/SharedCP14MagicEnergySystem.cs

@@ -112,6 +112,24 @@ public abstract class SharedCP14MagicEnergySystem : EntitySystem
         UpdateMagicAlert((ent, ent.Comp));
     }
 
+    /// <summary>
+    /// Set energy to 0
+    /// </summary>
+    public void ClearEnergy(Entity<CP14MagicEnergyContainerComponent?> ent)
+    {
+        if (!Resolve(ent, ref ent.Comp, false))
+            return;
+
+        var oldEnergy = ent.Comp.Energy;
+
+        ent.Comp.Energy = 0;
+
+        if (oldEnergy != 0)
+            RaiseLocalEvent(ent, new CP14MagicEnergyLevelChangeEvent(oldEnergy, 0, ent.Comp.MaxEnergy));
+
+        UpdateMagicAlert((ent, ent.Comp));
+    }
+
     public void TransferEnergy(Entity<CP14MagicEnergyContainerComponent?> sender,
         Entity<CP14MagicEnergyContainerComponent?> receiver,
         FixedPoint2 energy,