Add test workflows

.github/workflows/test-serial.yml

@@ -0,0 +1,35 @@
+
+name: Build and test serial backend of VecOps
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+
+    steps:
+    # checks out the code in the repository
+    - uses: actions/checkout@v3
+      with:
+        submodules: true
+
+    - name: Install dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y cmake g++
+
+    - name: Build and test
+      working-directory: ${{ github.workspace }}
+      run: |
+        cmake -B build -Dtesting=ON
+        cmake --build build -- -j4
+        ./build/testx/Boost 100 100
+        ./build/testx/InvariantMasses 100 100
+