Port NBT impl from LibAC Dart

NBT/ByteArrayTag.cs

@@ -0,0 +1,82 @@
+using System;
+using System.Collections.Generic;
+using LibAC.NBT.API;
+
+namespace LibAC.NBT
+{
+    public class ByteArrayTag : Tag
+    {
+        public List<byte> Value { get; private set; } = new List<byte>();
+
+        public ByteArrayTag() { }
+
+        private ByteArrayTag(List<byte> value)
+        {
+            Value.AddRange(value);
+        }
+
+        public static ByteArrayTag ValueOf(List<byte> value)
+        {
+            return new ByteArrayTag(value);
+        }
+
+        public override void ReadValue(ByteLayer data)
+        {
+            int len = data.ReadInt();
+            for (int i = 0; i < len; i++)
+            {
+                Value.Add(data.ReadByte());
+            }
+        }
+
+        public override void WriteValue(ByteLayer data)
+        {
+            data.WriteInt(Value.Count);
+            foreach (byte i in Value)
+            {
+                data.WriteByte(i);
+            }
+        }
+
+        public override TagType GetTagType()
+        {
+            return TagType.ByteArray;
+        }
+
+        public override dynamic GetValue()
+        {
+            return null; // Implementation-specific value retrieval
+        }
+
+        public override void SetValue(dynamic val)
+        {
+            // Implementation-specific value setting
+        }
+
+        public override void PrettyPrint(int indent, bool recurse)
+        {
+            string array = string.Join(", ", Value);
+            Console.WriteLine($"{new string('\t', indent)}{Tag.GetCanonicalName(GetTagType())}: [{array}]");
+        }
+
+        public override void WriteStringifiedValue(StringBuilder builder, int indent, bool isList)
+        {
+            builder.Append($"{(isList ? new string('\t', indent) : "")}[B; {string.Join("B, ", Value)}B]");
+        }
+
+        public override void ReadStringifiedValue(StringReader reader)
+        {
+            reader.Expect('[');
+            reader.Expect('B');
+            reader.Expect(';');
+            while (reader.Peek() != ']')
+            {
+                Value.Add(byte.Parse(reader.ReadNumber()));
+                reader.Expect('b');
+
+                if (reader.Peek() == ',') reader.Next();
+            }
+            reader.Expect(']');
+        }
+    }
+}