Turn lights out on exit (#1646)

* Add LightsDriver::reset

Function will reset all lights to off
Function needs to be called by each of the driver implementations
as needed during destruction

* Reset lights to off on exit

src/arch/Lights/LightsDriver_Export.cpp

@@ -11,6 +11,11 @@ LightsDriver_Export::LightsDriver_Export()
 	memset( &m_State, 0, sizeof(m_State) );
 }
 
+LightsDriver_Export::~LightsDriver_Export()
+{
+	LightsDriver::reset();
+}
+
 void LightsDriver_Export::Set( const LightsState *ls )
 {
 	m_Lock.Lock();