Merge pull request #1789 from modularml/dlumma/first-ci-workflow

First iteration Mojo Public CI Workflow

.github/workflows/buildAndTestMojoOSS.yml

@@ -0,0 +1,10 @@
+name: Build and Test Mojo OSS
+
+on:
+  pull_request:
+
+jobs:
+  test-pre-submit:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2