Unbreak build with upcoming Qt5 update

- Add missing includes

games/chessx/Makefile

@@ -1,10 +1,10 @@
-# $OpenBSD: Makefile,v 1.9 2020/01/25 22:57:56 bcallah Exp $
+# $OpenBSD: Makefile,v 1.10 2020/02/26 06:14:43 rsadowski Exp $
 
 COMMENT =		free chess database and analyzer
 DISTNAME =		chessx-1.4.6
 CATEGORIES =		games
 HOMEPAGE =		http://chessx.sourceforge.net/
-REVISION =		4
+REVISION =		5
 
 # GPLv2+
 PERMIT_PACKAGE =	Yes

games/chessx/patches/patch-src_dialogs_preferences_cpp

@@ -0,0 +1,13 @@
+$OpenBSD: patch-src_dialogs_preferences_cpp,v 1.1 2020/02/26 06:14:43 rsadowski Exp $
+
+Index: src/dialogs/preferences.cpp
+--- src/dialogs/preferences.cpp.orig
++++ src/dialogs/preferences.cpp
+@@ -21,6 +21,7 @@
+ #include "engineoptiondialog.h"
+ #include "downloadmanager.h"
+ 
++#include <QAction>
+ #include <QCheckBox>
+ #include <QColorDialog>
+ #include <QComboBox>

games/chessx/patches/patch-src_dialogs_savedialog_cpp

@@ -0,0 +1,13 @@
+$OpenBSD: patch-src_dialogs_savedialog_cpp,v 1.1 2020/02/26 06:14:43 rsadowski Exp $
+
+Index: src/dialogs/savedialog.cpp
+--- src/dialogs/savedialog.cpp.orig
++++ src/dialogs/savedialog.cpp
+@@ -22,6 +22,7 @@
+ #include "settings.h"
+ #include "tags.h"
+ 
++#include <QButtonGroup>
+ #include <QLineEdit>
+ #include <QCompleter>
+ 

games/chessx/patches/patch-src_gui_gamewindow_cpp

@@ -0,0 +1,13 @@
+$OpenBSD: patch-src_gui_gamewindow_cpp,v 1.1 2020/02/26 06:14:43 rsadowski Exp $
+
+Index: src/gui/gamewindow.cpp
+--- src/gui/gamewindow.cpp.orig
++++ src/gui/gamewindow.cpp
+@@ -8,6 +8,7 @@
+ #include "nag.h"
+ #include "settings.h"
+ 
++#include <QAction>
+ #include <QToolButton>
+ 
+ #if defined(_MSC_VER) && defined(_DEBUG)