First cut of Timer class.

- started integrating with reporters (now (optionally) supported in console reporter).
- introduced Node<> template to help with cumulative reporting and used it instead of ThreadedSectionInfo.

include/internal/catch_timer.h

@@ -0,0 +1,33 @@
+/*
+ *  Created by Phil on 05/08/2013.
+ *  Copyright 2013 Two Blue Cubes Ltd. All rights reserved.
+ *
+ *  Distributed under the Boost Software License, Version 1.0. (See accompanying
+ *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ */
+#ifndef TWOBLUECUBES_CATCH_TIMER_H_INCLUDED
+#define TWOBLUECUBES_CATCH_TIMER_H_INCLUDED
+
+#ifdef WIN32
+typedef unsigned long long uint64_t;
+#else
+#include <stdint.h>
+#endif
+
+namespace Catch {
+
+    class Timer {
+    public:
+        Timer() : m_ticks( 0 ) {}
+        void start();
+        unsigned int getElapsedNanoseconds() const;
+        unsigned int getElapsedMilliseconds() const;
+        double getElapsedSeconds() const;
+
+    private:
+        uint64_t m_ticks;
+    };
+
+} // namespace Catch
+
+#endif // TWOBLUECUBES_CATCH_TIMER_H_INCLUDED