Implemented static functions for length and length squared for Vectors

Source/Engine/Core/Math/Vector2.cs

@@ -821,6 +821,24 @@ namespace FlaxEngine
             return value;
         }
 
+        /// <summary>
+        /// Returns the length of a vector.
+        /// </summary>
+        /// <param name="vector">The vector to get the length from.</param>
+        public static Real Length(Vector2 vector)
+        {
+            return (Real)Mathf.Sqrt(vector.X * vector.X + vector.Y * vector.Y);
+        }
+
+        /// <summary>
+        /// Returns the length squared of a vector.
+        /// </summary>
+        /// <param name="vector">The vector to get the length squared from.</param>
+        public static Real LengthSquared(Vector2 vector)
+        {
+            return vector.X * vector.X + vector.Y * vector.Y;
+        }
+
         /// <summary>
         /// Makes sure that Length of the output vector is always below max and above 0.
         /// </summary>

Source/Engine/Core/Math/Vector3.cs

@@ -963,6 +963,24 @@ namespace FlaxEngine
             return value;
         }
 
+        /// <summary>
+        /// Returns the length of a vector.
+        /// </summary>
+        /// <param name="vector">The vector to get the length from.</param>
+        public static Real Length(Vector3 vector)
+        {
+            return (Real)Mathf.Sqrt(vector.X * vector.X + vector.Y * vector.Y + vector.Z * vector.Z);
+        }
+
+        /// <summary>
+        /// Returns the length squared of a vector.
+        /// </summary>
+        /// <param name="vector">The vector to get the length squared from.</param>
+        public static Real LengthSquared(Vector3 vector)
+        {
+            return vector.X * vector.X + vector.Y * vector.Y + vector.Z * vector.Z;
+        }
+
         /// <summary>
         /// Makes sure that Length of the output vector is always below max and above 0.
         /// </summary>