[network-manager-applet] meson: add missing header files

[Beniamino Galvani <bgalvani src gnome org>]

commit bc36bb13bb0fb4eb4af6ba0bdf4e5a75d2dde82e
Author: Beniamino Galvani <bgalvani redhat com>
Date:   Fri Sep 20 15:42:06 2019 +0200

    meson: add missing header files
    
    https://gitlab.gnome.org/GNOME/network-manager-applet/issues/71

 src/libnma/meson.build | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/src/libnma/meson.build b/src/libnma/meson.build
index 04f4e65e..2432be93 100644
--- a/src/libnma/meson.build
+++ b/src/libnma/meson.build
@@ -18,6 +18,8 @@ built_sources = gnome.compile_resources(
 )
 
 gir_headers = cert_chooser_headers + files(
+  'nma-bar-code-widget.h',
+  'nma-bar-code.h',
   'nma-mobile-providers.h',
   'nma-mobile-wizard.h',
   'nma-ui-utils.h',