Add GitHub workflow for running tests

Author: SuprDewd

.github/workflows/tests.yml

@@ -0,0 +1,18 @@
+name: Tests
+
+on: [push]
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up dependencies
+        run: sudo apt-get update && sudo apt-get install -y g++
+
+      - name: Run tests
+        run: |
+          ./tester/run_all_tests.sh
+