Add initial implementation of DevOps client and harvester script

harvester.py

@@ -0,0 +1,14 @@
+#!/usr/bin/env python3
+
+from devops import Client, DEVOPS_SCOPE
+from azure.identity import DefaultAzureCredential
+from json import dumps
+
+def main():
+    token = DefaultAzureCredential().get_token(DEVOPS_SCOPE).token
+    client = Client("https://dev.azure.com/mcovsandbox/", token)
+    projects = client.get_projects()
+    print(dumps(projects, indent=2))
+
+if __name__ == "__main__":
+    main()