updated legacy formats.

(BIZ): moved to Adviz folder.
(GIZ, GIZ2, BIZ2, PR1): new PC-98 image formats.
(DATA, BGM, SED): MyHarvest resource formats.
(HTF): compressed image format.
(PAK): Mina resource archives.
(GCmp): read palette from external resource.
(NCG): Nekotaro image format.
(BND, TCZ, TSZ): Ponytail Soft PC-98 formats.
(NOR): Sophia resource archive.
(SDA, PLA): Squadra D resource archives.
(UCA): added checks to avoid false positives.

Legacy/Discovery/ImageAN1.cs

@@ -0,0 +1,80 @@
+//! \file       ImageAN1.cs
+//! \date       2023 Oct 05
+//! \brief      Discovery animation resource (PC-98).
+//
+// Copyright (C) 2023 by morkt
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//
+
+using System.ComponentModel.Composition;
+using System.IO;
+using System.Windows.Media;
+
+namespace GameRes.Formats.Discovery
+{
+    //[Export(typeof(ImageFormat))]
+    public class An1Format : Pr1Format
+    {
+        public override string         Tag => "AN1";
+        public override string Description => "Discovery animation resource";
+        public override uint     Signature => 0;
+
+        public override ImageMetaData ReadMetaData (IBinaryStream file)
+        {
+            if (!file.Name.HasExtension (".AN1"))
+                return null;
+            return base.ReadMetaData (file);
+        }
+
+        public override ImageData Read (IBinaryStream file, ImageMetaData info)
+        {
+            var reader = new AnReader (file, (PrMetaData)info);
+            return reader.Unpack();
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("An1Format.Write not implemented");
+        }
+    }
+
+    internal class AnReader : PrReader
+    {
+        public AnReader (IBinaryStream file, PrMetaData info) : base (file, info)
+        {
+        }
+
+        public new ImageData Unpack ()
+        {
+            UnpackPlanes();
+            int frame_count = m_planes[0].ToUInt16 (2);
+            int frame_width = 0x20;
+            int frame_height = frame_count * 0x20;
+            int output_stride = frame_width >> 1;
+            var output = new byte[output_stride * frame_height];
+            int src = frame_count * 0x16 + 6;
+            m_plane_size = (output_stride >> 2) * frame_height;
+            FlattenPlanes (src, output);
+            Info.Width = (uint)frame_width;
+            Info.Height = (uint)frame_height;
+            return ImageData.Create (Info, PixelFormats.Indexed4, m_palette, output, output_stride);
+        }
+    }
+}