[dia] win32: export dia_guide_*

[Zander <zbrown src gnome org>]

commit 8a3d063062c96ce2634df2ea228232ef149bbdf9
Author: Zander Brown <zbrown gnome org>
Date:   Sun Oct 6 19:41:16 2019 +0100

    win32: export dia_guide_*

 lib/libdia.def | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/lib/libdia.def b/lib/libdia.def
index b2e0f7be..0e27c4df 100644
--- a/lib/libdia.def
+++ b/lib/libdia.def
@@ -264,6 +264,10 @@ EXPORTS
  dia_font_selector_new
  dia_font_selector_set_font
 
+ dia_guide_new
+ dia_guide_copy
+ dia_guide_free
+ dia_guide_get_type
 
  dia_get_data_directory
  dia_get_lib_directory