TIT that includes Schutzrohr and Fernwirkkabel for several modules

[sjib]

Prerequisits (will be provided by @sjib):

Mapping files:

• model_interlis_sia405_fernwirkkabel.py
• model_interlis_sia405_schutzrohr.py
• model_tdh.py
• model_tdh_od.py

Test data (xtf) (will be provided by @sjib):

• Fernwirkabel
• Schutzrohr

Tasks for Developer:

• add all necessary coding to be able to choose whether data for Fernwirkkabel is imported / exported to / from TWW or TDH including config, additional level for selection of module etc. - see requirements document
• add all necessary coding to be able to import / export for qwat
• Test INTERLIS Import and Export with Testdata Fernwirkkabel / Schutzrohr
• ...