Add CodeQL workflow for my branch

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,64 @@
+name: "CodeQL"
+
+on:
+  push:
+    branches: 7.0
+    tags: 'R7.0.*'
+  pull_request:
+    branches: 7.0
+    paths-ignore:
+      - '.appveyor/*'
+      - '.tools/*'
+      - 'documentation/*'
+      - 'startup/*'
+      - '**/*.md'
+      - '**/*.html'
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on:
+      - ubuntu-latest
+    # - windows-latest
+    # Supported by CodeQL which would check the Windows
+    # port, but needs more work here to set it up
+
+    permissions:
+      # Required for all workflows:
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ cpp ]
+
+    steps:
+      - name: Checkout Repositories
+        uses: actions/checkout@v4
+        with:
+          submodules: false
+
+      - name: Install Packages
+        run: |
+          sudo apt-get update
+          sudo apt-get install --yes libreadline-dev
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: ${{ matrix.language }}
+          config-file: ./.github/codeql/config.yml
+
+      - name: Build C/C++
+        run: |
+          echo '*** Building with these versions >>>'
+          g++ --version
+          make --version
+          perl --version
+          echo '<<<'
+          make -sj2 || echo '*** Ignoring build failure for CodeQL ***'
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3
+        with:
+          category: "/language:${{ matrix.language }}"