added workflows to run tests in the CI

.github/workflows/tests.yml

@@ -0,0 +1,34 @@
+name: C++ Build and Test
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Set up Python 3.11
+        uses: actions/setup-python@v2
+        with:
+          python-version: '3.11'
+
+      - name: Install C++ build tools and CMake
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential cmake
+
+      - name: Check out repository
+        uses: actions/checkout@v2
+
+      - name: Build and Test
+        run: |
+          mkdir build
+          cd build
+          cmake ..
+          cmake --build .
+          cd ..
+          python tools/test_runner.py build/src/laszlo