Add map movement permission parsing

Old code that I'd need to integrate. I eventually plan to have a visiual
representation of a given Overworld zone.

pk3DS/Tools/Image.cs

@@ -0,0 +1,61 @@
+using System.Drawing;
+using System.Drawing.Imaging;
+using System.IO;
+
+namespace pk3DS
+{
+    class Image
+    {
+        internal static Bitmap makeIMG(string path, bool save, int shift = 4, int s = 8)
+        {
+            byte[] byteArray = File.ReadAllBytes(path);
+            using (Stream dataStream = new MemoryStream(byteArray)) // Open the file, even if it is in use.
+            using (BinaryReader br = new BinaryReader(dataStream))
+            {
+                ushort width = br.ReadUInt16();
+                ushort height = br.ReadUInt16();
+
+                Bitmap img = new Bitmap(width * s, height * s);
+                for (int i = 0; i < width * height; i++)
+                {
+                    uint color = br.ReadUInt32();
+                    Color c;
+                    if (color == 0x01000021)
+                        c = Color.Black;
+                    else
+                    {
+                        color = LCRNG(color, shift);
+                        c = Color.FromArgb(0xFF, 0xFF - (byte)(color & 0xFF), 0xFF - (byte)((color >> 8) & 0xFF), 0xFF - (byte)(color >> 24 & 0xFF));
+                    }
+                    try
+                    {
+                        for (int x = 0; x < s; x++)
+                            for (int y = 0; y < s; y++)
+                                img.SetPixel((x + (i * s) % (img.Width)), y + ((i / width) * s), c);
+                    }
+                    catch { }
+                }
+                if (!save) return img;
+
+                using (MemoryStream ms = new MemoryStream())
+                {
+                    //error will throw from here
+                    img.Save(ms, ImageFormat.Png);
+                    byte[] data = ms.ToArray();
+                    string parent = Directory.GetParent(path).Name;
+                    File.WriteAllBytes(Path.Combine(Path.GetDirectoryName(path), parent + ".png"), data);
+                }
+                return img;
+            }
+        }
+        public static uint LCRNG(uint seed, int ctr)
+        {
+            for (int i = 0; i < ctr; i++)
+            {
+                seed *= 0x41C64E6D;
+                seed += 0x00006073;
+            }
+            return seed;
+        }
+    }
+}