add github action based test

Author: fangq

.github/workflows/run_test.yml

@@ -0,0 +1,32 @@
+name: Test BJData
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+    strategy:
+      matrix:
+        python-version: ["2.7", "3.7", "3.8", "3.9", "3.10", "3.11"]
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install packages
+        run: >
+          sudo apt-get install python-numpy python3-numpy
+               cython3 python-setuptools python3-setuptools lcov
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install coverage
+          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+      - name: Build, run test and coverage
+        run: |
+          ./coverage_test.sh
+      - name: Build sdist
+        run: |
+          python setup.py sdist