Download examples repository in Windows tasks

taskcluster/win-opt-base.tyml

@@ -43,6 +43,8 @@ payload:
       MSYS: 'winsymlinks:nativestrict'
       TENSORFLOW_BUILD_ARTIFACT: ${build.tensorflow}
       DEEPSPEECH_TEST_MODEL: https://community-tc.services.mozilla.com/api/queue/v1/task/${training}/artifacts/public/output_graph.pb
+      EXAMPLES_CLONE_URL: "https://github.com/mozilla/DeepSpeech-examples"
+      EXAMPLES_CHECKOUT_TARGET: "master"
 
   command:
     - >-
@@ -59,6 +61,8 @@ payload:
       env &&
       ln -s $USERPROFILE/msys64 $TASKCLUSTER_TASK_DIR/msys64 &&
       (wget -O - $TENSORFLOW_BUILD_ARTIFACT | 7z x -txz -si -so | 7z x -aoa -ttar -si ) &&
+      git clone --quiet $EXAMPLES_CLONE_URL $TASKCLUSTER_TASK_DIR/DeepSpeech/examples &&
+      cd $TASKCLUSTER_TASK_DIR/DeepSpeech/examples && git checkout --quiet $EXAMPLES_CHECKOUT_TARGET &&
       git clone --quiet ${event.head.repo.url} $TASKCLUSTER_TASK_DIR/DeepSpeech/ds/ &&
       cd $TASKCLUSTER_TASK_DIR/DeepSpeech/ds && git checkout --quiet ${event.head.sha} &&
       ln -s $TASKCLUSTER_TASK_DIR/DeepSpeech/ds/native_client/ $TASKCLUSTER_TASK_DIR/DeepSpeech/tf/native_client &&