add text Texture support

used in the last story

lib/AuroraLip/Texture/Formats/text.cs

@@ -0,0 +1,67 @@
+using AuroraLib.Common;
+
+namespace AuroraLib.Texture.Formats
+{
+    public class text : JUTTexture, IMagicIdentify, IFileAccess
+    {
+        public virtual bool CanRead => true;
+
+        public virtual bool CanWrite => false;
+
+        public virtual string Magic => magic;
+
+        private const string magic = "chnkdata";
+        private const string Platform = "wii ";
+        private const string Type = "text";
+
+        public bool IsMatch(Stream stream, in string extension = "")
+            => Matcher(stream, extension);
+
+        public static bool Matcher(Stream stream, in string extension = "")
+            => extension.ToLower() != ".pk" && stream.Length > 0x40 && stream.MatchString(magic) && stream.ReadInt32() == 0 && stream.MatchString(Platform) && stream.MatchString(Type);
+
+        protected override void Read(Stream stream)
+        {
+            stream.Seek(0x10, SeekOrigin.Current);
+            Header header = stream.Read<Header>(Endian.Big);
+
+            Add(new TexEntry(stream, null, header.Format, GXPaletteFormat.IA8, 0, (int)header.Width, (int)header.Height, (int)header.Images - 1)
+            {
+                LODBias = 0,
+                MagnificationFilter = GXFilterMode.Nearest,
+                MinificationFilter = GXFilterMode.Nearest,
+                WrapS = GXWrapMode.CLAMP,
+                WrapT = GXWrapMode.CLAMP,
+                EnableEdgeLOD = false,
+                MinLOD = 0,
+                MaxLOD = header.Images - 1
+            });
+        }
+
+        protected override void Write(Stream stream) => throw new NotImplementedException();
+
+        private struct Header
+        {
+            public uint Magic; // "text" 1952807028
+            public uint pad; // 0x0
+            public uint HeaderPos; // 0x10
+            public uint Size;
+
+            private uint format;
+            public uint Width;
+            public uint Height;
+            public uint Images;
+
+            public uint Unk3; // 56
+            public uint HeadeSize; // 64
+            public uint Unk5; // 13421772
+            public uint Unk6; // 3435973836
+
+            public GXImageFormat Format
+            {
+                get => (GXImageFormat)format;
+                set => format = (uint)value;
+            }
+        }
+    }
+}