Remove Azure pipeline, add Github Pipeline + Codecov

.github/codecov.yml

@@ -0,0 +1,31 @@
+coverage:
+  status:
+    project:
+      default:
+        target: 70%
+        threshold: 10
+        base: parent
+        if_no_uploads: error
+        if_not_found: success
+        if_ci_failed: error
+        only_pulls: false
+        flags: null
+        paths: null
+    patch:
+      default:
+        target: auto
+        # Allows PRs without tests, overall stats count
+        threshold: 100
+        base: auto
+        if_no_uploads: error
+        if_not_found: success
+        if_ci_failed: error
+        only_pulls: false
+        flags: null
+        paths: null
+
+# Disable comments on PR
+comment: false
+
+ignore:
+  - "/monai/deploy/_version.py"

.github/workflows/pr.yml

@@ -0,0 +1,43 @@
+# This workflow will install Python dependencies, run tests and lint with a single version of Python
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+
+name: build
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python 3.6
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.6
+      - name: Setup Dev Environment
+        run: |
+          pip install virtualenv
+          virtualenv .venv
+          source .venv/bin/activate
+          ./run setup
+      - name: Check formatting
+        run: |
+          source .venv/bin/activate
+          ./run check -f
+      - name: Run Unit tests
+        run: |
+          source .venv/bin/activate
+          ./run test all unit
+      - name: Coverage
+        run: |
+          source .venv/bin/activate
+          coverage xml
+      - name: Upload coverage
+        uses: codecov/codecov-action@v2
+        with:
+          fail_ci_if_error: false
+          files: ./coverage.xml