renderer changes, time and environment window

simulationtime.h

@@ -20,7 +20,7 @@ public:
     scenario_time() {
         m_time.wHour = 10; m_time.wMinute = 30; }
     void
-        init();
+	    init(time_t timestamp);
     void
         update( double const Deltatime );
     inline
@@ -45,6 +45,8 @@ public:
     double
         zone_bias() const {
             return m_timezonebias; }
+	void
+	    set_time(int yearday, int minute);
 
     /** Returns std::string in format: `"mm:ss"`. */
     operator std::string();