[librsvg/rustification] fix: implement gradient_radial_new

[Federico Mena Quintero <federico src gnome org>]

commit 6ece18779ebe31066122fd480cd5971131cb0f19
Author: Federico Mena Quintero <federico gnome org>
Date:   Wed Nov 30 19:07:37 2016 -0600

    fix: implement gradient_radial_new

 rsvg-paint-server.h |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)
---
diff --git a/rsvg-paint-server.h b/rsvg-paint-server.h
index a1e666a..379237a 100644
--- a/rsvg-paint-server.h
+++ b/rsvg-paint-server.h
@@ -99,6 +99,18 @@ Gradient *gradient_linear_new (RsvgLength     *x1,
 
 /* Implemented in rust/src/gradient.rs */
 G_GNUC_INTERNAL
+Gradient *gradient_radial_new (RsvgLength     *cx,
+                               RsvgLength     *cy,
+                               RsvgLength     *r,
+                               RsvgLength     *fx,
+                               RsvgLength     *fy,
+                               gboolean       *obj_bbox,
+                               cairo_matrix_t *affine,
+                               cairo_extend_t *extend,
+                               const char     *fallback_name);
+
+/* Implemented in rust/src/gradient.rs */
+G_GNUC_INTERNAL
 void gradient_destroy (Gradient *gradient);
 
 G_GNUC_INTERNAL