Add VS2019 configuration to Github CI

.github/workflows/main-last.yml

@@ -1,23 +0,0 @@
-name: CI
-on:
-  push:
-    branches: [ feature/github-actions-for-windows-compilers ]
-  pull_request:
-    branches: [ master ]
-
-jobs:
-  build-windows-vs2019:
-    name: Windows VS2019 Debug
-    runs-on: [windows-latest]
-
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v2
-      with:
-        submodules: recursive
-
-    - name: Build
-      run: "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\MSBuild\Current\Bin\MSBuild.exe" test/vs2019/etl.sln /p:Configuration=Debug /p:Platform=x86
-
-    - name: Run tests
-      run: ./test/etl_tests