Creates or updates the raft item with the specified type, name, and content. If the item already exists, it is overwritten.
The type.
The full name of the item.
The content of the item. May be null (Nothing in Visual Basic) to write an empty item.
If specified, this value will be used as the item's timestamp if supported by the raft.
If specified, this value will be used as the item's updated user if supported by the raft.