Complete documentation and streamline coding style a bit

• Contains the completed documentation
• Resolves Issue #1 (closed) (namespace inconsistencies)
• Change some variable names for consistency

src/SparseTransform/Convert/ColoredDotWriter.cs

-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using DataStructures;
+using SparseTransform.DataStructures;
 
 namespace SparseTransform.Convert
 {
-
-    internal class ColoredDotWriter : DotWriter
+    /// <summary>
+    /// Extends the DotWriter class to output a colored DOT graph.
+    /// </summary>
+    public class ColoredDotWriter : DotWriter
     {
         private bool textcolor;
         private string[] dictColor = new string[65];
@@ -32,7 +29,6 @@ namespace SparseTransform.Convert
                 }
             }
         }
-
        
         /// <summary>
         /// Labels the node with the respective colors determined by it's index. Overrides the method in DotWriter