#21 enable document creation using standard 14 font to test output

src/UglyToad.PdfPig/Graphics/Operations/PathConstruction/AppendStraightLineSegment.cs

@@ -1,5 +1,6 @@
 namespace UglyToad.PdfPig.Graphics.Operations.PathConstruction
 {
+    using System.IO;
     using Content;
     using Geometry;
 
@@ -20,6 +21,11 @@
         {
         }
 
+        public void Write(Stream stream)
+        {
+            throw new System.NotImplementedException();
+        }
+
         public override string ToString()
         {
             return $"{End.X} {End.Y} {Symbol}";