added some translations in selfservice and policy

Change-Id: I923d2c93d4517fa9bcffe6da7f6a03a467b87a72
Merge branch 'review/kay_winkler/add_some_translations' into merge

Conflicts:
	linotpd/src/linotp/i18n/de/LC_MESSAGES/linotp.po

Change-Id: Ic7c1608cfa22347c1e19ec2444f2ec0b24379ab6