title: Append-only access to Azure Cosmos DB/Container
body: <p>Is it possible to set up append (add) only access to a (selected) container in Azure CosmosDB?
  Or (as plan B) - at a higher (database) level?</p>
  <p>What are known good approaches to support immutability of  events in Event Sourcing system implemented with Azure CosmosDB?</p>