Add patch to add missing include

nm-tray FTBFS, because a missing include directive.

debian/changelog

@@ -1,3 +1,9 @@
+nm-tray (0.4.3-0ubuntu2) eoan; urgency=medium
+
+  * Add patch to include used class
+
+ -- apt-ghetto <apt-ghetto@lubuntu.me>  Wed, 02 Oct 2019 18:44:42 +0200
+
 nm-tray (0.4.3-0ubuntu1) eoan; urgency=medium
 
   * Bump version for new upstream release 0.4.3

debian/patches/include_used_class.patch

@@ -0,0 +1,22 @@
+From 4563dabee3cbee13bc9d23a4a5d0ddda1526b43f Mon Sep 17 00:00:00 2001
+From: Palo Kisa <palo.kisa@gmail.com>
+Date: Tue, 1 Oct 2019 12:03:43 +0200
+Subject: [PATCH] nmmodel: Add include for used class
+
+---
+ src/nmmodel.cpp | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/nmmodel.cpp b/src/nmmodel.cpp
+index d779801..ac70307 100644
+--- a/src/nmmodel.cpp
++++ b/src/nmmodel.cpp
+@@ -45,6 +45,7 @@ COPYRIGHT_HEADER*/
+ #include <NetworkManagerQt/ConnectionSettings>
+ #include <QDBusPendingCallWatcher>
+ #include <QInputDialog>
++#include <QMetaEnum>
+ 
+ namespace
+ {
+

debian/patches/series

@@ -1,2 +1,3 @@
 generalize-terminal-for-edits.patch
 blacklist-from-menu.patch
+include_used_class.patch