[gimp] build: add HEIF support in flatpak nightly and gtk3.

[Jehan Pagès <jehanp src gnome org>]

commit c64c985726118bd6d04e2ffcb35e14e04237abf7
Author: Jehan <jehan girinstud io>
Date:   Wed May 16 19:51:46 2018 +0200

    build: add HEIF support in flatpak nightly and gtk3.

 build/flatpak/org.gimp.GIMP-gtk3.json    |   23 +++++++++++++++++++++++
 build/flatpak/org.gimp.GIMP-nightly.json |   23 +++++++++++++++++++++++
 2 files changed, 46 insertions(+), 0 deletions(-)
---
diff --git a/build/flatpak/org.gimp.GIMP-gtk3.json b/build/flatpak/org.gimp.GIMP-gtk3.json
index d076c8e..41d347c 100644
--- a/build/flatpak/org.gimp.GIMP-gtk3.json
+++ b/build/flatpak/org.gimp.GIMP-gtk3.json
@@ -48,6 +48,29 @@
             ]
         },
         {
+            "name" : "libheif",
+            "modules": [
+                {
+                    "name": "libde265",
+                    "config-opts": [ "--disable-sherlock265" ],
+                    "sources": [
+                        {
+                            "type": "archive",
+                            "url": 
"https://github.com/strukturag/libde265/releases/download/v1.0.3/libde265-1.0.3.tar.gz";,
+                            "sha256": "e4206185a7c67d3b797d6537df8dcaa6e5fd5a5f93bd14e65a755c33cd645f7a"
+                        }
+                    ]
+                }
+            ],
+            "sources" : [
+                {
+                    "url" : 
"https://github.com/strukturag/libheif/releases/download/v1.1.0/libheif-1.1.0.tar.gz";,
+                    "sha256" : "3f8e62e5481b38965b05d44cddc522b15c4820ee635205f826a6b15c0d4040cb",
+                    "type" : "archive"
+                }
+            ]
+        },
+        {
             "name": "babl",
             "config-opts": [ "--disable-docs" ],
             "sources": [
diff --git a/build/flatpak/org.gimp.GIMP-nightly.json b/build/flatpak/org.gimp.GIMP-nightly.json
index 23a8408..2823db0 100644
--- a/build/flatpak/org.gimp.GIMP-nightly.json
+++ b/build/flatpak/org.gimp.GIMP-nightly.json
@@ -28,6 +28,29 @@
                 "/bin/pygtk*", "/bin/pygobject*", "/bin/pygobject-codegen-2.0"],
     "modules": [
         {
+            "name" : "libheif",
+            "modules": [
+                {
+                    "name": "libde265",
+                    "config-opts": [ "--disable-sherlock265" ],
+                    "sources": [
+                        {
+                            "type": "archive",
+                            "url": 
"https://github.com/strukturag/libde265/releases/download/v1.0.3/libde265-1.0.3.tar.gz";,
+                            "sha256": "e4206185a7c67d3b797d6537df8dcaa6e5fd5a5f93bd14e65a755c33cd645f7a"
+                        }
+                    ]
+                }
+            ],
+            "sources" : [
+                {
+                    "url" : 
"https://github.com/strukturag/libheif/releases/download/v1.1.0/libheif-1.1.0.tar.gz";,
+                    "sha256" : "3f8e62e5481b38965b05d44cddc522b15c4820ee635205f826a6b15c0d4040cb",
+                    "type" : "archive"
+                }
+            ]
+        },
+        {
             "name": "babl",
             "config-opts": [ "--disable-docs" ],
             "sources": [