Set up CI with Azure Pipelines

[skip ci]

azure-pipelines.yml

@@ -0,0 +1,23 @@
+# Starter pipeline
+# Start with a minimal pipeline that you can customize to build and deploy your code.
+# Add steps that build, run tests, deploy, and more:
+# https://aka.ms/yaml
+
+trigger:
+- master
+
+pool:
+  vmImage: 'ubuntu-latest'
+
+steps:
+  - script: echo Hello, world!
+    displayName: 'Run a one-line script'
+
+  - script: |
+      echo Start build
+      echo root content:
+      ls 
+      cd tests
+      echo tests content:
+      python build.py
+    displayName: 'Build'