[Docs] Provide UI method for replay method on retention folder.

if you configure journal retention, it is possible to call the Address.replay(optional startDate, optional endDate, Filter, targetAddress) method to replay messages.

if you provide a startDate, you don't need to provide an endDate, if you provide an endDate, you need to provide a startDate, if you provide both, they need to be in line... (although I'm not sure we would do this kind of validations on the UI).

This operation will call a scan on the journal to replay messages with a filter.

it could be great if the method was only available if retention is configured, although we can issue an Exception if the folder is not configured.