add basic azure support for kargo

roles/kubernetes/preinstall/templates/azure-cloud-config.j2

@@ -0,0 +1,12 @@
+{
+  "tenantId": "{{ azure_tenant_id }}",
+  "subscriptionId": "{{ azure_subscription_id }}",
+  "aadClientId": "{{ azure_aad_client_id }}",
+  "aadClientSecret": "{{ azure_aad_client_secret }}",
+  "resourceGroup": "{{ azure_resource_group }}",
+  "location": "{{ azure_location }}",
+  "subnetName": "{{ azure_subnet_name }}",
+  "securityGroupName": "{{ azure_security_group_name }}",
+  "vnetName": "{{ azure_vnet_name }}",
+  "routeTableName": "{{ azure_route_table_name }}"
+}