Move NewPP limit report HTML comments to JS variables

Move NewPP limit report HTML comments to JS variables

* Instead of having messy code to create a hidden HTML
  comment of English strings at the bottom of the page,
  expose the structured data of the parse information
  to JS so tools can use it.
* Make makeConfigSetScript() use pretty output so these
  variables are also easy to read in "view source".
* Remove ParserLimitReportFormat hook, since the data
  is not formatted to HTML anymore.

Bug: T110763
Change-Id: I2783c46c6d80f828f9ecf5e71fc8f35910454582