Add SwapEntityGroup with EGID

Svelto.ECS/EnginesRoot.GenericEntityFunctions.cs

@@ -42,6 +42,11 @@ namespace Svelto.ECS
                 _weakReference.Target.SwapEntityGroup(entityID, fromGroupID, toGroupID);
             }
 
+            public void SwapEntityGroup(EGID id, int toGroupID = ExclusiveGroups.StandardEntity)
+            {
+                _weakReference.Target.SwapEntityGroup(id.entityID, id.groupID, toGroupID);
+            }
+
             public void SwapEntityGroup(int entityID, int toGroupID)
             {
                 _weakReference.Target.SwapEntityGroup(entityID, ExclusiveGroups.StandardEntity, toGroupID);

Svelto.ECS/IEntityFunctions.cs

@@ -14,6 +14,7 @@ namespace Svelto.ECS
         void RemoveGroupAndEntities(int groupID);
         
         void SwapEntityGroup(int entityID, int fromGroupID, int toGroupID = ExclusiveGroups.StandardEntity);
+        void SwapEntityGroup(EGID id, int toGroupID = ExclusiveGroups.StandardEntity);
         void SwapEntityGroup(int entityID, int toGroupID);
         EGID SwapFirstEntityGroup(int fromGroupID = ExclusiveGroups.StandardEntity, int toGroupID = ExclusiveGroups.StandardEntity);
     }