Update mshost.yaml for Azure Pipelines (#46)

* Update mshost.yaml for Azure Pipelines

* Update mshost.yaml for Azure Pipelines

* Update mshost.yaml

* Update mshost.yaml for Azure Pipelines

ci_build/azure-pipelines/mshost.yaml

@@ -111,6 +111,24 @@ jobs:
   - script: conda create --yes --quiet --name pyenv -c conda-forge python=3.8 numpy
     displayName: Create Anaconda environment
 
+  - task: DownloadGitHubRelease@0
+    inputs:
+      connection: 'microsoft'
+      userRepository: 'microsoft/onnxruntime'
+      defaultVersionType: 'specificVersion'
+      version: '34858191'
+      itemPattern: '*-win-x64-1.6.0*'
+      downloadPath: '$(Build.sourcesdirectory)'
+    displayName: Download the ONNXRuntime prebuilt package.
+
+  - task: ExtractFiles@1
+    inputs:
+      archiveFilePatterns: '**/*.zip'
+      destinationFolder: '$(Build.sourcesdirectory)'
+      cleanDestinationFolder: false
+      overwriteExistingFiles: true
+    displayName: Unpack Ort package.
+
   - script: |
       call activate pyenv
       python -m pip install --upgrade pip