tdf#117850: Just call _Exit() in our applicationWillTerminate:

Sure, it is just a workaround, but a very effective workaround.

Change-Id: Id0daff048a27dae5cf8fb5e0e949c5b21e03fc86
Reviewed-on: https://gerrit.libreoffice.org/54924Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Tor Lillqvist <tml@collabora.com>
(cherry picked from commit aa81a086)
Reviewed-on: https://gerrit.libreoffice.org/54995Reviewed-by: Christian Lohmaier <lohmaier+LibreOffice@googlemail.com>

vcl/osx/vclnsapp.mm

@@ -22,6 +22,8 @@
 
 #include <vector>
 
+#include <stdlib.h>
+
 #include <sal/main.h>
 #include <vcl/commandevent.hxx>
 #include <vcl/ImageTree.hxx>
@@ -314,6 +316,7 @@ SAL_WNODEPRECATED_DECLARATIONS_POP
 {
     (void)aNotification;
     sal_detail_deinitialize();
+    _Exit(0);
 }
 
 -(NSApplicationTerminateReply)applicationShouldTerminate: (NSApplication *) app