Add CI to check build on PR / push (#7)

.github/workflows/ci.yml

@@ -0,0 +1,46 @@
+on: [push]
+
+jobs:
+  build_x86-64:
+    runs-on: ubuntu-18.04
+    name: Build on ubuntu18.04 x86_64
+
+    steps:
+      - uses: actions/checkout@v2.1.0
+      - run: |
+          curl -sL https://github.com/bazelbuild/bazelisk/releases/download/v1.11.0/bazelisk-linux-amd64 -o /tmp/bazel
+          chmod 755 /tmp/bazel
+          cd example
+
+      - run: |
+          cd example && /tmp/bazel build "@pcl//..." --verbose_failures --show_progress_rate_limit=10
+
+  build_aarch64:
+    runs-on: ubuntu-18.04
+    name: Build on ubuntu18.04 aarch64
+
+    steps:
+      - uses: actions/checkout@v2.1.0
+      - uses: uraimo/run-on-arch-action@v2.1.1
+        name: Build and run tests on embedded platforms
+        with:
+          arch: aarch64
+          distro: ubuntu18.04
+
+          # Not required, but speeds up builds
+          githubToken: ${{ github.token }}
+
+          # Install some dependencies in the container. This speeds up builds if
+          # you are also using githubToken. Any dependencies installed here will
+          # be part of the container image that gets cached, so subsequent
+          # builds don't have to re-install them. The image layer is cached
+          # publicly in your project's package repository, so it is vital that
+          # no secrets are present in the container state or logs.
+          install: |
+            apt-get update -q -y
+            apt-get install -q -y curl gcc g++
+            curl -sL https://github.com/bazelbuild/bazelisk/releases/download/v1.11.0/bazelisk-linux-arm64 -o /usr/bin/bazel
+            chmod 755 /usr/bin/bazel
+
+          run: |
+            cd example && bazel build "@pcl//..." --verbose_failures --show_progress_rate_limit=10