Adding ci

.github/workflows/ci.yml

@@ -0,0 +1,19 @@
+name: CI
+on:
+  push
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up JDK 1.8
+      uses: actions/setup-java@v1
+      with:
+        java-version: 1.8
+    - name: Build and Test with Maven
+      run: mvn -B test --file pom.xml
+    - uses: codecov/codecov-action@v1
+      with:
+        flags: unittests # optional
+        name: codecov-umbrella # optional
+        fail_ci_if_error: true # optional (default = false)