AbstractReviver should be able to auto-select the root node

[Rebolon]

For instance here is what we have to do:

const oneBook = {
    "book": {
        "title": "Zombies in western culture",
        "serie": {
            "name": "Open Reports Series"
        }
    }
}

const serieReviver = new SerieReviver()
const bookReviver = new BookReviver(serieReviver)

const book = bookReviver.main(oneBook.book)

to get a Book we have to send oneBook.book instead of oneBook.
Maybe we should change the AbstractReviver::main to allow to get automatically the root node:

• IF the propertyPath is on the root AND this.getNodeName is found in the content HEN take it and send to initFromJon