WGD: show correct information in the e-wgd

[ErwinKomen]

In de e-wgd interface tonen of het item in het papieren woordenboek staat. Dit is per lemma.
(Alleen de benoemingsvragen blijven in het e-wgd te zien; de volkenkundige vragen gaan er uit.)

[ErwinKomen]

Details

1. Re-create the content for Veluwe wereld/mens/huis
   1. Be sure to only include (and show) the questions indicated above

[ErwinKomen]

Note

There are two different points here:

1. Importing data:
   1. Do not import into the database lemma's that are 'volkenkundig'. They have the word volkskundig as part of their lemmatitel field - see issue WGD: separate volkskundig / benoeming #43
2. Web interface:
   1. Show per lemma whether this lemma is part of the printed edition (opname is true) or not (opname is false) - see issue WGD: indicate printed/electronic #45