Fix BlackMisc header includes

* Include only what is used
* Use forward declaration when possible
* Sorted includes

refs #630

src/blackmisc/network/entityflags.cpp

@@ -8,11 +8,11 @@
  */
 
 #include "blackmisc/network/entityflags.h"
-#include "blackmisc/dbus.h"
-#include <QtDBus/QDBusMetaType>
-#include <QStringList>
 #include "blackmisc/verify.h"
 
+#include <QStringList>
+#include <QtGlobal>
+
 namespace BlackMisc
 {
     namespace Network