[gnome-nibbles] Add initial CI

[Jordan Petridis <jpetridis src gnome org>]

commit eafc2255ea055ac24b55675e7e6a6d238e6d9529
Author: Jordan Petridis <jpetridis gnome org>
Date:   Tue Jul 2 20:34:07 2019 +0300

    Add initial CI
    
    Based upon
    https://gitlab.gnome.org/GNOME/Initiatives/wikis/DevOps-with-Flatpak

 .gitlab-ci.yml | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..3e5ffef
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,21 @@
+include: 'https://gitlab.gnome.org/GNOME/citemplates/raw/master/flatpak/flatpak_ci_initiative.yml'
+
+variables:
+  BUNDLE: 'nibbles-git.flatpak'
+
+flatpak:
+  extends: '.flatpak'
+  variables:
+    MANIFEST_PATH: 'org.gnome.Nibbles.json'
+    RUNTIME_REPO: 'https://sdk.gnome.org/gnome-nightly.flatpakrepo'
+    FLATPAK_MODULE: 'gnome-nibbles'
+    MESON_ARGS: ''
+    APP_ID: 'org.gnome.Nibbles'
+
+review:
+  dependencies:
+    - 'flatpak'
+  extends: '.review'
+
+stop_review:
+  extends: '.stop_review'