[gtksourceview] Add back gtksourceview-typebuiltins.h public header

[Sébastien Wilmet <swilmet src gnome org>]

commit 9e5f236a33c8f64f57719786eb5dd3248679f471
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Tue Jun 21 20:14:26 2016 +0200

    Add back gtksourceview-typebuiltins.h public header
    
    Although it is recommended to include only gtksource.h,
    gtksourceview-typebuiltins.h was a public header and it was possible to
    include it in external code. And it is included in gtksourceviewmm.

 gtksourceview/Makefile.am                  |    3 ++-
 gtksourceview/gtksourceview-typebuiltins.h |    2 ++
 2 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/gtksourceview/Makefile.am b/gtksourceview/Makefile.am
index bff996f..90f6b0a 100644
--- a/gtksourceview/Makefile.am
+++ b/gtksourceview/Makefile.am
@@ -56,7 +56,8 @@ libgtksourceview_public_headers =             \
        gtksourcetypes.h                        \
        gtksourceundomanager.h                  \
        gtksourceutils.h                        \
-       gtksourceview.h
+       gtksourceview.h                         \
+       gtksourceview-typebuiltins.h
 
 libgtksourceview_public_c_files =              \
        gtksourcebuffer.c                       \
diff --git a/gtksourceview/gtksourceview-typebuiltins.h b/gtksourceview/gtksourceview-typebuiltins.h
new file mode 100644
index 0000000..ef618f2
--- /dev/null
+++ b/gtksourceview/gtksourceview-typebuiltins.h
@@ -0,0 +1,2 @@
+/* Deprecated: 3.22: #include <gtksourceview/gtksource.h> instead. */
+#include <gtksourceview/gtksourceview-enumtypes.h>