Migrate to cmake and refine the code structure (#92)

* migrate to cmake

* move the 3rd party libs

* organize 3rdparty

* update the 3rd party version

* refine the CMakeLists.txt

* update install command

* update install command

* update install command

* update install command

* update dependency

* update the dependency

* update the dependency

* remove CPM.cmake

* remove QtCreator project file

* update cmake file

* improve cmake file

* add cmakew

* use wget

* remove echo

* update the doc

* remove the screenshot

* update the doc

* update the install steps

* check the openconnect version

* update the doc

* update install scripts

* fix install scripts

* improve message

* improve message

* improve install scripts

* improve the version check

* improve the version check

* improve install script

* add version

* organize includes

* add version bump

* update CI

* update CI

* add the release flag

* update message

GPClient/gpclient.h

@@ -1,15 +1,15 @@
 #ifndef GPCLIENT_H
 #define GPCLIENT_H
 
-#include "gpservice_interface.h"
+#include <QtWidgets/QMainWindow>
+#include <QtWidgets/QSystemTrayIcon>
+#include <QtWidgets/QMenu>
+#include <QtWidgets/QPushButton>
+
+#include "gpserviceinterface.h"
 #include "portalconfigresponse.h"
 #include "settingsdialog.h"
 
-#include <QMainWindow>
-#include <QSystemTrayIcon>
-#include <QMenu>
-#include <QPushButton>
-
 QT_BEGIN_NAMESPACE
 namespace Ui { class GPClient; }
 QT_END_NAMESPACE