Set up workflow

.github/workflows/ccpp.yml

@@ -0,0 +1,37 @@
+name: C/C++ CI
+  
+on: [push]
+jobs:
+  build_gcc:
+    name: Ubuntu GCC build and unit tests
+    runs-on: ubuntu-18.04
+    steps:
+    - name: Install Boost
+      run:  sudo apt install libboost-all-dev
+    - name: Clone repo
+      uses: actions/checkout@v1
+      with:
+        submodules: true
+    - name: Configure
+      run:  cmake .
+    - name: Build
+      run:  make -j 8
+    - name: Unit tests
+      run:  env CTEST_OUTPUT_ON_FAILURE=1 make test
+
+  build_clang:
+    name: MacOS Clang build and unit tests
+    runs-on: macOS-latest
+    steps:
+    - name: Install Boost
+      run:  brew install boost
+    - name: Clone repo
+      uses: actions/checkout@v1
+      with:
+        submodules: true
+    - name: Configure
+      run:  cmake .
+    - name: Build
+      run:  make -j 8
+    - name: Unit tests
+      run:  env CTEST_OUTPUT_ON_FAILURE=1 make test