Data Export Views

Prepare following DB-Views for project pp-data-export:

ℹ Structure is defined in https://docs.google.com/spreadsheets/d/1ZDzaNN7okM0W1xmfFXXc__gQetXSRSASO_yJsxfDUw4/edit?usp=drive_link.

• Objednávky časopis
• Objednávky prílohy
• Predaj časopis
• Verify pp-data-export integration (see https://gitlab.websupport.sk/proti-prudu/pp-data-export/-/issues/1)