Make alterations to libzni

Serialization/ZNIFile/Header.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace LibZNI.Serialization.ZNIFile
+{
+    public class Header : Serializable
+    {
+        public const string SIGNATURE = "ZNIFile";
+        public Version VERSION = new Version(1,0,0,1,0,0);
+
+        public override void load(Folder f)
+        {
+
+            Folder x = f["Header"] as Folder;
+            if (x == null) return;
+
+            if (x["Signature"].StringValue == SIGNATURE)
+            {
+                Version ver = new Version();
+                ver.load(f);
+                if (VERSION.Compare(ver) == 0)
+                {
+                    return;
+                } else throw new VersionNumberDifferentException(VERSION, ver);
+                
+            }else
+            {
+                throw new Exception("Header failed validation");
+            }
+        }
+
+        public override void save(Folder f)
+        {
+            Folder x = new Folder("Header");
+            x.Add(new StringTag("Signature", SIGNATURE));
+            VERSION.save(x);
+
+            f.Add(x);
+        }
+
+        public static Folder GetHeader()
+        {
+            Folder f = new Folder("temp"); // Initialize a temporary header
+            Header x = new Header();
+            x.save(f);
+            return f["Header"] as Folder;
+        }
+    }
+}