ci: Add system deps jobs

.github/workflows/cmake_system_deps.yml

@@ -0,0 +1,40 @@
+# Test or-tools using system wide install dependencies.
+name: CMake System Dependencies
+
+on: [push, pull_request]
+
+jobs:
+  linux:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        distro: [system_deps]
+        lang: [cpp, python, dotnet, java]
+      fail-fast: false
+    env:
+      DISTRO: ${{ matrix.distro }}
+      LANG: ${{ matrix.lang }}
+    steps:
+    - uses: actions/checkout@v2
+    - name: Build base image
+      run: make --directory=cmake ${DISTRO}_base
+    - name: Build env image
+      run: make --directory=cmake ${DISTRO}_${LANG}_env
+    - name: Build devel image
+      run: make --directory=cmake ${DISTRO}_${LANG}_devel
+    - name: Build project
+      run: make --directory=cmake ${DISTRO}_${LANG}_build
+    - name: Test project
+      run: make --directory=cmake ${DISTRO}_${LANG}_test
+
+    - name: Build Install env image
+      run: make --directory=cmake ${DISTRO}_${LANG}_install_env
+    - name: Build Install devel image
+      run: make --directory=cmake ${DISTRO}_${LANG}_install_devel
+    - name: Build Install
+      run: make --directory=cmake ${DISTRO}_${LANG}_install_build
+    - name: Test Install
+      run: make --directory=cmake ${DISTRO}_${LANG}_install_test
+
+# TODO(mizux): Add macOS + brew job
+# TODO(mizux): Add Windows + choco/vcpkg job