logic: Added cross-compilation UI to CXX source group setup (issue #370)

Allows for defining specific target triple of architecture, vendor, OS and environment as set of dropdown lists
in CXX source group setup.

bug id = 370

src/app/main.cpp

@@ -28,6 +28,7 @@
 #include "utility/ResourcePaths.h"
 #include "utility/ScopedFunctor.h"
 #include "utility/UserPaths.h"
+#include "utility/utilityApp.h"
 #include "utility/utilityPathDetection.h"
 #include "utility/Version.h"
 #include "version.h"
@@ -169,7 +170,7 @@ int main(int argc, char *argv[])
 {
 	QApplication::setApplicationName("Sourcetrail");
 
-	if (QSysInfo::windowsVersion() != QSysInfo::WV_None)
+	if (utility::getOsType() == OS_WINDOWS)
 	{
 		QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling, true);
 	}