first steps for export filter
fix export filter fs attr
removed
migration to stdlib
added path method to make lib work
missing example added
make the console running
fix wrong model names in tests
now null is available as well
use logging
added exception to make clear when no template is available
check for invalid template fixed
add check filter filesystem attributes
multiple export filters
check constant to avoid warning
array seems to be the correct choice
fixed feature
logging for export and import filters
Merge branch 'feature/refactor_export_filter' into development