[gnome-calculator] Use Meson for “gnome-calculator” module.

[Arnaud Bonatti <arnaudb src gnome org>]

commit f82676aa53472342bda4eca594e3abdf729efd0e
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Tue Mar 20 08:25:20 2018 +0100

    Use Meson for “gnome-calculator” module.

 org.gnome.Calculator.json |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/org.gnome.Calculator.json b/org.gnome.Calculator.json
index 31622b3..89ab63d 100644
--- a/org.gnome.Calculator.json
+++ b/org.gnome.Calculator.json
@@ -63,6 +63,7 @@
         },
         {
             "name": "gnome-calculator",
+            "buildsystem": "meson",
             "sources": [
                 {
                     "type": "git",