Create ci.yml

Author: ViralBShah

.github/workflows/ci.yml

@@ -0,0 +1,31 @@
+name: OpenLibm CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
+        arch:
+          - x64
+          - x32
+          - armv7
+          - aarch64
+          
+    steps:
+    - uses: actions/checkout@v2
+    - name: make
+      run: make
+    - name: make test
+      run: make test