Put json in its own module with header

modules/ripple_json/json/json_features.h

@@ -0,0 +1,42 @@
+#ifndef CPPTL_JSON_FEATURES_H_INCLUDED
+#define CPPTL_JSON_FEATURES_H_INCLUDED
+
+#include "json_forwards.h"
+
+namespace Json {
+
+   /** \brief Configuration passed to reader and writer.
+    * This configuration object can be used to force the Reader or Writer
+    * to behave in a standard conforming way.
+    */
+   class JSON_API Features
+   {
+   public:
+      /** \brief A configuration that allows all features and assumes all strings are UTF-8.
+       * - C & C++ comments are allowed
+       * - Root object can be any JSON value
+       * - Assumes Value strings are encoded in UTF-8
+       */
+      static Features all();
+
+      /** \brief A configuration that is strictly compatible with the JSON specification.
+       * - Comments are forbidden.
+       * - Root object must be either an array or an object value.
+       * - Assumes Value strings are encoded in UTF-8
+       */
+      static Features strictMode();
+
+      /** \brief Initialize the configuration like JsonConfig::allFeatures;
+       */
+      Features();
+
+      /// \c true if comments are allowed. Default: \c true.
+      bool allowComments_;
+
+      /// \c true if root must be either an array or an object value. Default: \c false.
+      bool strictRoot_;
+   };
+
+} // namespace Json
+
+#endif // CPPTL_JSON_FEATURES_H_INCLUDED