SpriteMapping tool added

Created first implementation of a spritemap making app!

SpriteMapEditor/PictureBoxWithInterpolationMode.cs

@@ -0,0 +1,20 @@
+using System.Drawing.Drawing2D;
+using System.Windows.Forms;
+
+/// <summary>
+/// Inherits from PictureBox; adds Interpolation Mode Setting
+/// </summary>
+
+namespace SpriteMapEditor
+{
+    public class PictureBoxWithInterpolationMode : PictureBox
+    {
+        public InterpolationMode InterpolationMode { get; set; }
+
+        protected override void OnPaint(PaintEventArgs paintEventArgs)
+        {
+            paintEventArgs.Graphics.InterpolationMode = InterpolationMode;
+            base.OnPaint(paintEventArgs);
+        }
+    }
+}