Translated almost everything

lang/de/tool_lifecycle.php

lang/en/tool_lifecycle.php

step/createbackup/lang/de/lifecyclestep_createbackup.php

step/deletecourse/lang/de/lifecyclestep_deletecourse.php

step/duplicate/lang/de/lifecyclestep_duplicate.php

step/email/lang/de/lifecyclestep_email.php

trigger/categories/lang/de/lifecycletrigger_categories.php

...elayedcourses/lang/de/lifecycletrigger_delayedcourses.php