fix bug in modifiables preventing deletion of tech nodes

Author: cheese3660

src/PatchManager.Missions/Modifiables/MissionModifiable.cs

@@ -18,6 +18,7 @@ public override void Set(DataValue dataValue)
         if (dataValue.IsDeletion)
         {
             _missionSelectable.SetDeleted();
+            return;
         }
         base.Set(dataValue);
     }

src/PatchManager.SassyPatching/Attributes/PatcherRulesetAttribute.cs

@@ -12,6 +12,7 @@ namespace PatchManager.SassyPatching.Attributes;
 
 [AttributeUsage(AttributeTargets.Class)]
 [BaseTypeRequired(typeof(IPatcherRuleSet))]
+[MeansImplicitUse]
 public class PatcherRulesetAttribute : Attribute
 {
     /// <summary>

src/PatchManager.Science/Modifiables/ExperimentModifiable.cs

@@ -18,6 +18,7 @@ public override void Set(DataValue dataValue)
         if (dataValue.IsDeletion)
         {
             _experimentSelectable.SetDeleted();
+            return;
         }
         base.Set(dataValue);
     }

src/PatchManager.Science/Modifiables/ScienceModifiable.cs

@@ -19,6 +19,7 @@ public override void Set(DataValue dataValue)
         if (dataValue.IsDeletion)
         {
             _scienceSelectable.SetDeleted();
+            return;
         }
         base.Set(dataValue);
     }