CMake: Hide CMakeManager implementation in .cpp

Change-Id: Ia66d73cd060d17c2d25a1d5b89155ab4e7a6b62b
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>

src/plugins/cmakeprojectmanager/cmakeprojectplugin.cpp

@@ -57,7 +57,6 @@ public:
 
     CMakeSettingsPage settingsPage;
 
-    CMakeManager manager;
     CMakeBuildStepFactory buildStepFactory;
     CMakeBuildConfigurationFactory buildConfigFactory;
     CMakeEditorFactory editorFactor;
@@ -82,6 +81,8 @@ class CMakeProjectPlugin final : public ExtensionSystem::IPlugin
     {
         d = new CMakeProjectPluginPrivate;
 
+        setupCMakeManager();
+
 #ifdef WITH_TESTS
         addTestCreator(createCMakeConfigTest);
         addTestCreator(createCMakeParserTest);