[pango/gi-docs] Add gi-docgen as a subproject

[Matthias Clasen <matthiasc src gnome org>]

commit c798e4f9039d12edcf6707488fe7ce8e32a818e9
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Feb 10 14:27:15 2021 -0500

    Add gi-docgen as a subproject
    
    While we're developing gi-docgen it's better to have it as part
    of our build.

 subprojects/gi-docgen.wrap | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/subprojects/gi-docgen.wrap b/subprojects/gi-docgen.wrap
new file mode 100644
index 00000000..dd2080b0
--- /dev/null
+++ b/subprojects/gi-docgen.wrap
@@ -0,0 +1,6 @@
+[wrap-git]
+directory=gi-docgen
+url=https://gitlab.gnome.org/ebassi/gi-docgen.git
+push-url=ssh://git gitlab gnome org:ebassi/gi-docgen.git
+revision=master
+depth=1