[FEATURE] Make hardcoded parameters configurable via TS

The following TS properties now configure former php defined parameters:
[plugin.tx_indexedsearch.results.]
* titleCropAfter = 50
* titleCropSignifier = ...
* summaryCropAfter = 180
* summaryCropSignifier =
* hrefInSummaryCropAfter = 60
* hrefInSummaryCropSignifier = ...
* markupSW_summaryMax = 300
* markupSW_postPreLgd = 60
* markupSW_postPreLgd_offset = 5
* markupSW_divider = ...
Every TS property has the stdWrap property, too.
Default settings do not change old behaviour.

Resolves: #20875
Releases: master
Change-Id: I01f4807cab208631233bf219dd987ba69da61344
Reviewed-on: http://review.typo3.org/20197


Reviewed-by: Tymoteusz Motylewski <t.motylewski@gmail.com>
Tested-by: Tymoteusz Motylewski <t.motylewski@gmail.com>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>