Adding feature to start stopwatch directly on construction, often used this way in tests

include/ITAStopWatch.h

@@ -45,7 +45,7 @@ class ITA_BASE_API ITAStopWatch
 {
 public:
 	//! Konstruktor
-	ITAStopWatch();
+	ITAStopWatch( bool bStartImmediately = false );
 
 	//! Konstruktor
 	ITAStopWatch( ITAClock* pClock );

src/ITAISO9613.cpp

@@ -94,4 +94,4 @@ void ISO9613::AtmosphericAbsorption( ITABase::CThirdOctaveFactorMagnitudeSpectru
 		double dAirAbsorptionFactor = AtmosphericAbsorptionFactor( dFrequency, dDistance, dTemperature, dHumidity, dStaticPressure );
 		oA_atm_factor.SetMagnitude( i, ( float ) dAirAbsorptionFactor );
 	}
-}
\ No newline at end of file
+}

src/ITAStopWatch.cpp

@@ -10,7 +10,7 @@
 bool ITAStopWatch::m_bInstanceCreated = false;
 double ITAStopWatch::m_dStartStopLatency = 0;
 
-ITAStopWatch::ITAStopWatch()
+ITAStopWatch::ITAStopWatch( bool bStartImmediately /* = false */ )
 	: m_pClock( ITAClock::getDefaultClock() )
 {
 	// Falls dies die erste Stopwatch ist die erzeugt wird: Latenz messen
@@ -38,6 +38,9 @@ ITAStopWatch::ITAStopWatch()
 	}
 
 	reset();
+
+	if( bStartImmediately )
+		start();
 }
 
 ITAStopWatch::ITAStopWatch( ITAClock* pClock )