Add support for Attributes!

Interfaces/IAttributeToken.cs

@@ -0,0 +1,10 @@
+namespace RobloxFiles
+{
+    public interface IAttributeToken<T>
+    {
+        AttributeType AttributeType { get; }
+
+        T ReadAttribute(Attribute attribute);
+        void WriteAttribute(Attribute attribute, T value);
+    }
+}

Interfaces/IXmlPropertyToken.cs

@@ -1,10 +1,10 @@
 using System.Xml;
 
-namespace RobloxFiles.XmlFormat
+namespace RobloxFiles.Tokens
 {
     public interface IXmlPropertyToken
     {
-        string Token { get; }
+        string XmlPropertyToken { get; }
 
         bool ReadProperty(Property prop, XmlNode token);
         void WriteProperty(Property prop, XmlDocument doc, XmlNode node);