Infer NumberSelector type in EntityTables (#36568)

* Infer number selector types from context

* forgor

Content.Shared/EntityTable/ValueSelector/RangeNumberSelector.cs

@@ -8,6 +8,11 @@ public sealed partial class RangeNumberSelector : NumberSelector
     [DataField]
     public Vector2i Range = new(1, 1);
 
+    public RangeNumberSelector(Vector2i range)
+    {
+        Range = range;
+    }
+
     public override int Get(System.Random rand)
     {
         // rand.Next() is inclusive on the first number and exclusive on the second number,