#10 move tokens to the root namespace for discoverability. upgrade xunit versions. there is a bug with test discovery for stringtokenizertests

src/UglyToad.PdfPig/Tokens/ObjectToken.cs

@@ -0,0 +1,29 @@
+namespace UglyToad.PdfPig.Tokens
+{
+    using ContentStream;
+
+    internal class ObjectToken : IDataToken<IToken>
+    {
+        /// <summary>
+        /// The offset of the start of the object number in the file bytes.
+        /// </summary>
+        public long Position { get; set; }
+
+        /// <summary>
+        /// The object and generation number of the object.
+        /// </summary>
+        public IndirectReference Number { get; }
+
+        /// <summary>
+        /// The inner data of the object.
+        /// </summary>
+        public IToken Data { get; }
+
+        public ObjectToken(long position, IndirectReference number, IToken data)
+        {
+            Position = position;
+            Number = number;
+            Data = data;
+        }
+    }
+}