T6600:Manual test case for flatpak mildenhall helloworld-app review incorporated

1. sdk-flatpak-build-helloworld-app.yaml: building the app by using mildenhall runtime.
2. sdk-flatpak-helloworld-app.yaml: running the helloworld-app present in the server.

Signed-off-by: Tarun Baghmar <Tarun.Baghmar@in.bosch.com>

test-cases/sdk-flatpak-build-helloworld-app.yaml

+metadata:
+  name: sdk-flatpak-build-helloworld-app
+  format: "Apertis Test Definition 1.0"
+  image-types:
+    sdk:     [ amd64 ]
+  image-deployment:
+    - APT
+  type: functional
+  exec-type: manual
+  priority: medium
+  maintainer: "Apertis Project"
+  description: "Install mildenhall runtime, build helloworld-app using mildenhall runtime
+                 and run the helloworld-app."
+
+  macro_install_packages_preconditions: flatpak-builder
+  pre-conditions:
+    - "Please uninstall the org.apertis.mildenhall.helloworld-app if already installed."
+    - $ flatpak uninstall org.apertis.mildenhall.helloworld-app
+
+
+  expected:
+    - "Hello world app window should be visible"
+
+run:
+  steps:
+    - "Clone the helloworld-app"
+    - $ git clone https://gitlab.apertis.org/sample-applications/helloworld-app.git
+    - "Add remote for mildenall runtime:"
+    - $ flatpak --user remote-add --if-not-exists --no-gpg-verify apertis-mildenhall https://images.apertis.org/flatpak/mildenhall
+    - "Install the org.apertis.mildenhall.Platform org.apertis.mildenhall.Sdk "
+    - $ flatpak install -y org.apertis.mildenhall.Platform org.apertis.mildenhall.Sdk
+    - "Wait for installation to be completed"
+    - "Switch inside the helloworld-app directory"
+    - $ cd helloworld-app
+    - "Build the helloworld-app using mildenhall runtime"
+    - $ flatpak-builder --repo=repo --force-clean build-dir flatpak-recipe.yaml
+    - "Add remote for helloworld-app"
+    - $ flatpak --if-not-exists --user remote-add --no-gpg-verify hello-worldapp repo/
+    - "Install the helloworld app"
+    - $ flatpak install -y hello-worldapp org.apertis.mildenhall.helloworld-app
+    - "Now run the helloworld app"
+    - $ flatpak run org.apertis.mildenhall.helloworld-app

test-cases/sdk-flatpak-helloworld-app.yaml

+metadata:
+  name: sdk-flatpak-helloworld-app
+  format: "Apertis Test Definition 1.0"
+  image-types:
+    sdk:     [ amd64 ]
+  image-deployment:
+    - APT
+  type: functional
+  exec-type: manual
+  priority: medium
+  maintainer: "Apertis Project"
+  description: "Install helloworld-app from the flatpak repo."
+
+  pre-conditions:
+    - "Please uninstall the org.apertis.mildenhall.helloworld-app if already installed."
+    - $ flatpak uninstall org.apertis.mildenhall.helloworld-app
+
+
+  expected:
+    - "Hello world app window should be visible"
+
+run:
+  steps:
+    - $ flatpak --user remote-add --if-not-exists --no-gpg-verify apertis-mildenhall https://images.apertis.org/flatpak/mildenhall
+    - "Install the org.apertis.mildenhall.helloworld-app"
+    - $ flatpak install -y apertis-mildenhall org.apertis.mildenhall.helloworld-app
+    - "Wait for installation to be completed."
+    - "Now run the helloworld app"
+    - $ flatpak run org.apertis.mildenhall.helloworld-app