.azure-pipelines.yml changes

Make ignored files similar to GitHub Actions.
Remove unneeded jobs/job for single job.
Use PowerShell.
Remove unneeded single quotation marks around displayName.
cmake:
 Remove unneeded generator parameter.
 Use cmake -B instead of mkdir/cd.
Artifacts:
 Check configuration variable instead of job name.
 Make artifact preparation step name more clear.
 Simplify artifact preparation.

.azure-pipelines.yml

@@ -4,17 +4,11 @@ trigger:
     - '*'
   paths:
     exclude:
-    - doc/*
-    - doc/*/*
-    - .github/*
-    - .github/*/*
-    - .appveyor.yml
-    - .travis.yml
-    - CONTRIBUTORS
-    - COPYING
-    - README.md
-    - gen-msvc-project.bat
-    - setup.bat
+    - '.github/**'
+    - '*.bat'
+    - '.appveyor.yml'
+    - '.travis.yml'
+    - 'doc/**'
 
 pr:
   branches:
@@ -22,62 +16,43 @@ pr:
     - '*'
   paths:
     exclude:
-    - doc/*
-    - doc/*/*
-    - .github/*
-    - .github/*/*
-    - .appveyor.yml
-    - .travis.yml
-    - CONTRIBUTORS
-    - COPYING
-    - README.md
-    - gen-msvc-project.bat
-    - setup.bat
+    - '.github/**'
+    - '*.bat'
+    - '.appveyor.yml'
+    - '.travis.yml'
+    - 'doc/**'
 
-jobs:
-- job:
-  pool:
-    vmImage: windows-latest
-  strategy:
-    matrix:
-      Release:
-        configuration: Release
-      Debug:
-        configuration: Debug
+pool:
+  vmImage: windows-latest
+strategy:
+  matrix:
+    Release:
+      configuration: Release
+    Debug:
+      configuration: Debug
 
-  steps:
-  - script: |
-      echo "This CI isn't tested against master, and therefore, isn't guaranteed to work. Pull requests are welcome."
-      echo "If it doesn't work and you'd rather not fix it, it's recommended to use GitHub Actions CI instead."
-    displayName: 'Third-Party CI Warning'
+steps:
+- pwsh: |
+    echo "This CI isn't tested against master, and therefore, isn't guaranteed to work. Pull requests are welcome."
+    echo "If it doesn't work and you'd rather not fix it, it's recommended to use GitHub Actions CI instead."
+  displayName: Third-Party CI Warning
 
-  - checkout: self
-    submodules: recursive
+- checkout: self
+  submodules: recursive
 
-  - script: |
-      mkdir build
-      cd build
-      cmake .. -G "Visual Studio 16 2019" -A Win32
-    displayName: 'Before build'
+- pwsh: cmake -B build -A Win32
+  displayName: Before build
 
-  - script: cmake --build . --config %configuration%
-    workingDirectory: build
-    displayName: 'Build'
+- pwsh: cmake --build . --config $env:configuration
+  workingDirectory: build
+  displayName: Build
 
-  - script: cmake --install . --config %configuration% --prefix ../artifacts
-    workingDirectory: build
-    displayName: 'Prepare Files'
-    condition: and(succeeded(), eq(variables['Agent.JobName'], 'Release'))
+- pwsh: cmake --install . --config $env:configuration --prefix $(Build.ArtifactStagingDirectory)
+  workingDirectory: build
+  condition: and(succeeded(), eq(variables['configuration'], 'Release'))
+  displayName: Prepare artifacts
 
-  - task: CopyFiles@2
-    displayName: 'Copy files to $(Build.ArtifactStagingDirectory)'
-    condition: and(succeeded(), eq(variables['Agent.JobName'], 'Release'))
-    inputs:
-      Contents: artifacts\bin\**
-      TargetFolder: '$(Build.ArtifactStagingDirectory)'
-      flattenFolders: true
-
-  - publish: $(Build.ArtifactStagingDirectory)
-    artifact: $(configuration)
-    condition: and(succeeded(), eq(variables['Agent.JobName'], 'Release'))
-    displayName: Publish artifact(s)
+- publish: $(Build.ArtifactStagingDirectory)
+  artifact: $(configuration)
+  condition: and(succeeded(), eq(variables['configuration'], 'Release'))
+  displayName: Publish artifacts