Device workflows

This workflow creates a device and installs base config - but there are some more things to do. I will create Jira stories.

geant_service_orchestrator/services/provisioning_proxy.py

+from geant_service_orchestrator.products.product_types.device \
+    import DeviceBlock
+from geant_service_orchestrator import settings
+import requests
+
+
+def provision_node(
+        node_subscription_params: DeviceBlock,
+        pp_params=settings.OSSParams.PROVISIONING_PROXY):
+    r = requests.get(
+        f'https://{pp_params.api_base}'
+        f'/api/version',
+        params=node_subscription_params.dict())
+    r.raise_for_status()