[Typo3-shop] german template

[Ulrich Meier]

At the moment tt_products comes with a file products_template_de.tmpl, 
which is a danish template. I think danish templates should be named 
"_dk" since DK is the ISO code for Denmark and "_de" should be used for 
german templates. At the moment it is mixed up.
Actually a google search for products_template_de first shows a german 
template. Was it overwritten at some time in the past? It would be nice 
if something like this german one could be added to the extension.

Uli