Add support for public reviews transparent workflow

[asmecher]

With the exception of the public reviews plugin (which was written as an example and may not be used anywhere in production at the moment), there are no examples of OJS journals embracing public reviews and transparent workflow.

Assess the requirements for providing workflow transparency. It is possible that this is 100% a theme concern, if the necessary data is already tracked (which is likely) and there are no performance concerns with fetching and displaying to readers it using conventional means.

Related: #10323 (re: open reviews vs. commenting)