CMakePM: Add action to reload CMake Presets

The CMake presets will be reloaded. The preset kits will get the CMake
configuration cleared (no more CMakeCache.txt)

All the kits will be removed from the project, so that the Kit
configuration wizard will be displayed at the end.

If a normal Qt Kit was configured, the user will get the chance to
import the existing configuration (the initial configuration will be
lost though).

Change-Id: Ieda83098d7716913d7870b67ab522705da4ed93b
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>
Reviewed-by: hjk <hjk@qt.io>

src/plugins/cmakeprojectmanager/cmakeprojectmanager.h

@@ -30,12 +30,14 @@ private:
     void buildFile(ProjectExplorer::Node *node = nullptr);
     void updateBuildFileAction();
     void enableBuildFileMenus(ProjectExplorer::Node *node);
+    void reloadCMakePresets();
 
     QAction *m_runCMakeAction;
     QAction *m_clearCMakeCacheAction;
     QAction *m_runCMakeActionContextMenu;
     QAction *m_rescanProjectAction;
     QAction *m_buildFileContextMenu;
+    QAction *m_reloadCMakePresetsAction;
     Utils::ParameterAction *m_buildFileAction;
 };