Use primary constructor for Rectangle

Quadtree/Rectangle.cs

@@ -4,28 +4,22 @@ namespace SpatialCollections
 {
     public enum IntersectionType { Contains, Intersects, Disjoint }
 
-    public class Rectangle
+    public class Rectangle(Vector2 min, Vector2 max)
     {
         /// <summary>
         /// Vector containing the lowest X and Y coordinates contained in the rectangle.
         /// </summary>
-        public Vector2 Min;
+        public Vector2 Min = min;
 
         /// <summary>
         /// Vector containing the highest X and Y coordinates contained in the rectangle.
         /// </summary>
-        public Vector2 Max;
+        public Vector2 Max = max;
 
         public Vector2 Center => (Max + Min) * 0.5f;
 
         public Vector2 Size => Max - Min;
 
-        public Rectangle(Vector2 min, Vector2 max)
-        {
-            Min = min;
-            Max = max;
-        }
-
         public bool Contains(Vector2 position)
         {
             return Min.X <= position.X && position.X <= Max.X && Min.Y <= position.Y && position.Y <= Max.Y;