Include missing header for some Visual Studio versions.

Libs/CommandLineModules/Core/ctkCmdLineModuleManager.cpp

@@ -46,6 +46,8 @@
 #include <QDebug>
 #include <QFuture>
 
+#include <algorithm>
+
 #if (QT_VERSION < QT_VERSION_CHECK(4,7,0))
 extern int qHash(const QUrl& url);
 #endif