use appveyor config files also for GH builds

update GH action

Author: chcg

.github/workflows/CI_build.yml

@@ -19,10 +19,21 @@ jobs:
         submodules: 'true'
 
     - name: Add msbuild to PATH
-      uses: microsoft/setup-msbuild@v1
+      uses: microsoft/setup-msbuild@v2
+
+    - name: "Use CI config files"
+      run: |
+           Write-Host "remove PythonSettings.props" -ForegroundColor Green
+           Remove-Item '.\PythonScript\project\PythonSettings.props'
+           Rename-Item -Path ".\PythonScript\project\PythonSettings_appveyor.props" -NewName "PythonSettings.props"
+           Write-Host "remove packages.config" -ForegroundColor Green
+           Remove-Item '.\PythonScript\project\packages.config'
+           Rename-Item -Path ".\PythonScript\project\packages_appveyor.config" -NewName "packages.config"
+      shell: pwsh
+      working-directory: .
 
     - name: Setup NuGet.exe
-      uses: nuget/setup-nuget@v1
+      uses: nuget/setup-nuget@v2
 
     - name: Restore
       working-directory: .