message: add configuration for poly for DataConnections
diff: @@ -9,5 +9,17 @@ az:
  package-name: azure-mgmt-kusto
  python-sdk-output-folder: "$(output-folder)/src/kusto/azext_kusto/vendored_sdks/kusto"
  +cli:
  + cli-directive:
  + - where:
  + group: 'DataConnections'
  + op: 'CreateOrUpdate|Update'
  + param: 'parameters'
  + poly-resource: true
  + - where:
  + group: 'DataConnections'
  + op: 'dataConnectionValidation'
  + param: 'properties'
  + poly-resource: true
  ```
  