AutoTest: Clean up header mess

Better decoupling and reduced binary size.

Change-Id: I4f6239979d9d7dae4ad92f19ec8420be38372c07
Reviewed-by: David Schulz <david.schulz@qt.io>
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/autotest/testprojectsettings.cpp

@@ -24,12 +24,16 @@
 ****************************************************************************/
 
 #include "testprojectsettings.h"
+
 #include "autotestconstants.h"
 #include "testframeworkmanager.h"
 
+#include <projectexplorer/project.h>
 #include <projectexplorer/session.h>
 #include <utils/algorithm.h>
 
+#include <QLoggingCategory>
+
 namespace Autotest {
 namespace Internal {