Enable CodeQL Security scanning (#13894)

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,62 @@
+name: "CodeQL"
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [master]
+
+defaults:
+  run:
+    shell: pwsh
+
+env:
+  DOTNET_SKIP_FIRST_TIME_EXPERIENCE: 1
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-16.04
+
+    strategy:
+      fail-fast: false
+      matrix:
+        # Override automatic language detection by changing the below list
+        # Supported options are ['csharp', 'cpp', 'go', 'java', 'javascript', 'python']
+        language: ['csharp']
+        # Learn more...
+        # https://docs.github.com/en/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#overriding-automatic-language-detection
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+      with:
+        fetch-depth: '0'
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v1
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+
+    - run: |
+        Get-ChildItem -Path env:
+      name: Capture Environment
+
+    - run: |
+        Import-Module .\tools\ci.psm1
+        Invoke-CIInstall -SkipUser
+      name: Bootstrap
+
+    - run: |
+        Import-Module .\tools\ci.psm1
+        Invoke-CIBuild
+      name: Build
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v1