Add constructor to BoundingBox for single point empty box construction

Source/Engine/Core/Math/BoundingBox.cpp

@@ -6,7 +6,7 @@
 #include "../Types/String.h"
 
 const BoundingBox BoundingBox::Empty(Vector3(MAX_float), Vector3(MIN_float));
-const BoundingBox BoundingBox::Zero(Vector3(0.0f), Vector3(0.0f));
+const BoundingBox BoundingBox::Zero(Vector3(0.0f));
 
 String BoundingBox::ToString() const
 {

Source/Engine/Core/Math/BoundingBox.h

@@ -45,6 +45,16 @@ public:
     {
     }
 
+    /// <summary>
+    /// Initializes a new instance of the <see cref="BoundingBox"/> struct.
+    /// </summary>
+    /// <param name="point">The location of the empty bounding box.</param>
+    BoundingBox(const Vector3& point)
+        : Minimum(point)
+        , Maximum(point)
+    {
+    }
+
     /// <summary>
     /// Initializes a new instance of the <see cref="BoundingBox"/> struct.
     /// </summary>