Create importer for definitions of structures - hoogte Related to Issue [WTI-579]git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@5639 5a3db67b-de53-47b5-99c8-a1c30a6650e2Former-commit-id: 5ab4567a0926ef3d17df95c1c3180831a581f7a5Former-commit-id: 65538a361f93dafd425cd201663b8ee4e1e21334