[FEATURE] ViewHelpers f:form.select.option and f:form.select.optgroup

Allows manually defining all options and optgroups for
the f:form.select parent field as tag contents of the
select field. The added ViewHelpers are TagBasedViewHelpers
which means they support all standard HTML attributes.

Note that while tag content rendering is now supported,
it is *STILL* not possible to create ``<option>`` tags
manually - you *HAVE* to use the form fields!

Change-Id: I5f122f746a5309671ad0faf2feccda2d29fef4c7
Releases: master
Resolves: #29399
Reviewed-on: https://review.typo3.org/48281


Reviewed-by: Jan Helke <typo3@helke.de>
Tested-by: Jan Helke <typo3@helke.de>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Susanne Moog <susanne.moog@typo3.org>
Tested-by: Susanne Moog <susanne.moog@typo3.org>