RMV: Remove ExtendedIfViewHelper
ADD: add template and typoscript for link filter
CHG: Hide the select filter label element if no label is defined
Merge branch 'develop' of gitlab.pluspunkthosting.de:pt/pt_extlist into develop

* 'develop' of gitlab.pluspunkthosting.de:pt/pt_extlist:
  ADD: add template and typoscript for link filter
FIX: optionsSqlQuery only trim if it is no array
FIX: reset session data in method loadLifeCycleManager
TASK: Minor formatting changes
Merge branch 'develop' of github.com:punktDe/pt_extlist into develop
Merge branch 'develop' of gitlab.pluspunkthosting.de:pt/pt_extlist into develop