Use vs2017 only vm for CI

appveyor.yml

@@ -0,0 +1,60 @@
+version: 1.0.{build}
+build_cloud: electron-16
+skip_branch_with_pr: true
+image: electron-16-vs2017
+environment:
+  DISABLE_CRASH_REPORTER_TESTS: true
+  - TARGET_ARCH: ia32
+  - TARGET_ARCH: x64
+build_script:
+- ps: >-
+    Add-Path "$env:ProgramFiles (x86)\Windows Kits\10\Debuggers\x64"
+
+    $env:path = "$env:ProgramFiles (x86)\Windows Kits\10\Debuggers\x64;$env:path"
+
+    $Message = (git log --format=%B -n 1 HEAD) | Out-String
+
+    if ((Test-Path Env:\RUN_RELEASE_BUILD)) {
+      $env:ELECTRON_RELEASE = '1'
+      Write-Output "release build triggered from api"
+    }
+
+    if ((Test-Path Env:\ELECTRON_RELEASE)) {
+      Write-Output "Running release build"
+      python script\bootstrap.py --target_arch=$env:TARGET_ARCH
+      python script\build.py -c R
+      python script\create-dist.py
+    } else {
+      Write-Output "Running debug build"
+      python script\bootstrap.py --target_arch=$env:TARGET_ARCH --dev
+      python script\build.py -c D
+    }
+
+    if ($? -ne 'True') {
+      throw "Build failed with exit code $?"
+    } else {
+      "Build succeeded."
+    }
+test_script:
+- ps: >-
+    if (Test-Path Env:\ELECTRON_RELEASE) {
+      Write-Output "Skipping tests for release build"
+    } else {
+      Write-Output "Running tests for debug build"
+      python script\test.py --ci
+      if ($LASTEXITCODE -ne '0') {
+        throw "Tests failed with exit code $LASTEXITCODE"
+      } else {
+        Write-Output "Tests succeeded."
+      }
+      python script\verify-ffmpeg.py
+
+      if ($LASTEXITCODE -ne '0') {
+        throw "Verify ffmpeg failed with exit code $LASTEXITCODE"
+      } else {
+        "Verify ffmpeg succeeded."
+      }
+    }
+artifacts:
+- path: out
+  name: out