[!!!][FEATURE] Enhanced new MetaTag API

It is now possible to use a new MetaTag API having managers to handle
specific Meta Tag "families" like OpenGraph.

You can use the API by TypoScript and from PHP. It will use the
DependencyOrderingService to define the order of the managers.

Besides the managers shipped by core, you can also add and register
your own managers.

Resolves: #81464
Releases: master
Change-Id: I64f349c32e542087597f033eb48e4d218a5cd53c
Reviewed-on: https://review.typo3.org/56738


Reviewed-by: Mathias Schreiber <mathias.schreiber@typo3.com>
Tested-by: Mathias Schreiber <mathias.schreiber@typo3.com>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Frank Naegler <frank.naegler@typo3.org>
Reviewed-by: Richard Haeser <richard@maxserv.com>
Tested-by: Richard Haeser <richard@maxserv.com>
Reviewed-by: Andreas Wolf <andreas.wolf@typo3.org>
Tested-by: Andreas Wolf <andreas.wolf@typo3.org>