Feature - 256-color support

- Temporary reorganization of files to prepare for a case change in
  from color.* -> Color.* on a Mac.

src/TDB.cpp

@@ -37,7 +37,7 @@
 #include "TDB.h"
 #include "Table.h"
 #include "Timer.h"
-#include "color.h"
+#include "Color.h"
 #include "main.h"
 
 extern Context context;