Added spacer item

LemonUI/Menus/NativeSpacerItem.cs

@@ -0,0 +1,47 @@
+using System.Drawing;
+using GTA.UI;
+
+namespace LemonUI.Menus
+{
+    /// <summary>
+    /// An item used to have a space between the items with text.
+    /// </summary>
+    public class NativeSpacerItem : NativeItem
+    {
+        #region Constructor
+
+        /// <summary>
+        /// Creates a new Spacer with no text.
+        /// </summary>
+        public NativeSpacerItem() : this(string.Empty)
+        {
+        }
+        /// <summary>
+        /// Creates a new Spacer with a specific title.
+        /// </summary>
+        /// <param name="title">The title of the item.</param>
+        public NativeSpacerItem(string title) : base(title, string.Empty, string.Empty)
+        {
+            this.title.Alignment = Alignment.Center;
+        }
+
+        #endregion
+
+        #region Function
+
+        /// <inheritdoc/>
+        public override void Recalculate(PointF pos, SizeF size, bool selected)
+        {
+            base.Recalculate(pos, size, selected);
+
+            title.Position = new PointF(pos.X + (size.Width * 0.5f), title.Position.Y);
+        }
+        /// <inheritdoc/>
+        public override void Draw()
+        {
+            title.Draw();
+        }
+
+        #endregion
+    }
+}