#6486 Added CI solution for automated builds

* Added Ubuntu Dockers for 16, 18, and 19
* Added Cirrus CI build task for gcloud instance with SSDs
* Added macOS instance build with brew Qt install
* Fixed Qt headers for 5.12.2 used in Ubuntu 19.04
* Consolidated version info into CMake file

src/gui/src/ActionDialog.cpp

@@ -25,6 +25,7 @@
 
 #include <QtCore>
 #include <QtGui>
+#include <qbuttongroup.h>
 
 ActionDialog::ActionDialog(QWidget* parent, ServerConfig& config, Hotkey& hotkey, Action& action) :
     QDialog(parent, Qt::WindowTitleHint | Qt::WindowSystemMenuHint),

src/gui/src/ScreenSetupView.cpp

@@ -22,6 +22,7 @@
 
 #include <QtCore>
 #include <QtGui>
+#include <qheaderview.h>
 
 ScreenSetupView::ScreenSetupView(QWidget* parent) :
     QTableView(parent)