[FEATURE] Introduce PageTypeEnhancer

A new PageTypeEnhancer is added to map the internal TYPO3
GET parameter `type` to a speaking URL suffix.

The PageTypeEnhancer only does suffixes, if other

You can configure it like this:

routeEnhancers:
  PageType:
    type: PageType
    default: ''
    map:
      '.html': 1
      'menu.json': 13

Resolves: #86160
Releases: master
Change-Id: Ie4b387963012946272568a69c9581e8d345dbe4c
Reviewed-on: https://review.typo3.org/58478


Reviewed-by: Oliver Hader <oliver.hader@typo3.org>
Tested-by: Oliver Hader <oliver.hader@typo3.org>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Frank Naegler <frank.naegler@typo3.org>
Tested-by: Frank Naegler <frank.naegler@typo3.org>