Fixes from #721 (#725)

* Fixes from #721

* then fix the typo in the previous word too

Add properties to describe the height of a Lift (including its doors) (…

…#696)

Remove all abstract elements from constraint validation (#462)

* Remove all abstract elements from constraint validation

* Make ResposibilityRole not abstract, and revert constraint check removal

* Update NeTEx_publication.xsd

* Update NeTEx_publication_timetable.xsd

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Co-authored-by: Matthias Günter <[email protected]>

Typo's assigNment (#443)

* Update netex_timeDemandType_support.xsd

Fix typo TimeDemandAssigNment

* More assignment typo's

* Typo's assigNment

Fix more typo's