Localize xdl file

[kelemeng]

When a form document is opened, and the Form sidebar contains a Drucken... button, that opens a dialog to set print options.
This dialog is still entirely German - the strings should be translated to English and somehow localized as well.

code pointer:
oxt/src/main/oxt/basic/WollMux/slv_count.xdl

[kelemeng]

Extending a bit: there are several other similar source files where this would also apply:
./oxt/src/main/oxt/basic/WollMux/print_parameter.xdl
./oxt/src/main/oxt/basic/WollMux/about.xdl
./oxt/src/main/oxt/basic/WollMux/pal_dialog.xdl
./oxt/src/main/oxt/basic/WollMux/seriendruck_start.xdl
./oxt/src/main/oxt/basic/WollMux/slv_count.xdl
./oxt/src/main/oxt/basic/WollMux/seriendruck_printer.xdl
./oxt/src/main/oxt/basic/WollMux/DatensatzBearbeitenPerson.xdl
./oxt/src/main/oxt/basic/WollMux/if_then_else.xdl
./oxt/src/main/oxt/basic/WollMux/gender_dialog.xdl
./oxt/src/main/oxt/basic/WollMux/seriendruck_format.xdl
./oxt/src/main/oxt/basic/WollMux/seriendruck_single.xdl
./oxt/src/main/oxt/basic/WollMux/DBDatasourceDialog.xdl
./oxt/src/main/oxt/basic/WollMux/email_auth.xdl
./oxt/src/main/oxt/basic/WollMux/DatensatzBearbeitenOrga.xdl
./oxt/src/main/oxt/basic/WollMux/print_progress.xdl
./oxt/src/main/oxt/basic/WollMux/edit_table_columns.xdl
./oxt/src/main/oxt/basic/WollMux/seriendruck_mail.xdl
./oxt/src/main/oxt/basic/WollMux/DatasourceSearchDialog.xdl
./oxt/src/main/oxt/basic/WollMux/DatensatzBearbeitenFusszeile.xdl