McuSupport: Move auto kit creation settings to handler"

Change-Id: I86a8588b812c10e0d547405c432f9fdc9c72aee3
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>

src/plugins/mcusupport/settingshandler.h

@@ -46,5 +46,8 @@ public:
     virtual bool write(const QString &settingsKey,
                        const Utils::FilePath &path,
                        const Utils::FilePath &defaultPath) const;
+
+    virtual bool isAutomaticKitCreationEnabled() const;
+    void setAutomaticKitCreation(bool isEnabled);
 }; //class SettingsHandler
 } // namespace McuSupport::Internal