Added build_and_test.yml github workflow

Author: aalhour

.github/workflows/build_and_test.yml

@@ -0,0 +1,22 @@
+name: Build and Test
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: Setup .NET Core
+      uses: actions/setup-dotnet@v1
+      with:
+        dotnet-version: 2.2.108
+    - name: dotnet build
+      run: dotnet build --configuration Release
+      
+  test:
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+    - name: dotnet test
+      run: dotnet test