Add CodeQL workflow for GitHub code scanning

.github/workflows/codeql.yml

@@ -0,0 +1,56 @@
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ "master", "develop" ]
+  pull_request:
+    branches: [ "master", "develop" ]
+  schedule:
+    - cron: "48 10 * * 4"
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ javascript, cpp ]
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Install Packages (cpp)
+        if: ${{ matrix.language == 'cpp' }}
+        run: |
+          sudo apt-get update
+          sudo apt-get install --yes build-essential cmake libboost-all-dev libconfig++-dev libavcodec-dev libavutil-dev libavformat-dev libstb-dev libtag1-dev libpam0g-dev libgtest-dev
+          export WT_VERSION=4.7.2
+          export WT_INSTALL_PREFIX=/usr
+          git clone https://github.com/emweb/wt.git wt
+          pushd wt
+          git checkout ${WT_VERSION}
+          cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=${WT_INSTALL_PREFIX} -DBUILD_EXAMPLES=OFF -DENABLE_LIBWTTEST=OFF -DCONNECTOR_FCGI=OFF
+          make
+          sudo make install
+          popd
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v2
+        with:
+          languages: ${{ matrix.language }}
+          queries: +security-and-quality
+
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@v2
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v2
+        with:
+          category: "/language:${{ matrix.language }}"