[gimp] libgimpwidgets: (meson) a whole list of headers were not introspected.

[Jehan <jehanp src gnome org>]

commit 4150bbb59f6501732cf886a1b86ac0bf1df205c1
Author: Jehan <jehan girinstud io>
Date:   Sat Oct 19 22:45:59 2019 +0200

    libgimpwidgets: (meson) a whole list of headers were not introspected.

 libgimpwidgets/meson.build | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
---
diff --git a/libgimpwidgets/meson.build b/libgimpwidgets/meson.build
index 2631d380c0..63f086dc33 100644
--- a/libgimpwidgets/meson.build
+++ b/libgimpwidgets/meson.build
@@ -94,6 +94,23 @@ libgimpwidgets_sources = [
 ]
 
 libgimpwidgets_headers_introspectable = files(
+  'gimpbrowser.h',
+  'gimpbusybox.h',
+  'gimpbutton.h',
+  'gimpcairo-utils.h',
+  'gimpcellrenderercolor.h',
+  'gimpcellrenderertoggle.h',
+  'gimpchainbutton.h',
+  'gimpcolorarea.h',
+  'gimpcolorbutton.h',
+  'gimpcolordisplay.h',
+  'gimpcolordisplaystack.h',
+  'gimpcolorhexentry.h',
+  'gimpcolornotebook.h',
+  'gimpcolorprofilechooserdialog.h',
+  'gimpcolorprofilecombobox.h',
+  'gimpcolorprofilestore.h',
+  'gimpcolorprofileview.h',
   'gimpcolorselection.h',
   'gimpcolorselector.h',
   'gimpdialog.h',