[skip ci] Add Advanced Security code scanning workflow

[skip ci] Add Advanced Security code scanning workflow.
This file will introduce a new pipeline for the repository on GitHub, which doesn’t affect in any way already existing CI-CD pipelines.
If you have any questions please ask on #security channel.

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,35 @@
+name: "CodeQL"
+
+on:
+  # workflow_dispatch enables manual triggering of the workflow
+  workflow_dispatch:
+  schedule:
+  - cron: '23 20 * * 5'
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: ['javascript']
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v1
+      with:
+        languages: ${{ matrix.language }}
+
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v1
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v1