[FEATURE] Viewpage language selector

[FEATURE] Viewpage language selector

Adds a language selector to the viewpage module.

Resolves: #56282
Releases: master
Change-Id: Iae19f533f447c20aab7d672eff9aa1d202365363
Reviewed-on: http://review.typo3.org/27862
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>
Reviewed-by: Daniel Goerz <ervaude@gmail.com>
Tested-by: Daniel Goerz <ervaude@gmail.com>
Reviewed-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Tested-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>