svtools: Translated ctrltool.hxx from English to German

Someone may want to move the comments into the right place, i.e.
very close to the function definitions.

Change-Id: Ibdb74b2f1020ef338852acbb3a06f292dc94da9b
Reviewed-on: https://gerrit.libreoffice.org/9321
Reviewed-by: Thomas Arnhold <thomas@arnhold.org>
Tested-by: Thomas Arnhold <thomas@arnhold.org>