CDB3-3301 Copying docs from asset and announcement to procedure

https://procedure-dev.prozorro.sale/api/registry/assets/632846219cdb59bb9af955a5
https://procedure-dev.prozorro.sale/api/jobber/announcements/632846251001757d4e23296e
https://procedure-dev.prozorro.sale/api/procedures/63284629509abff4df6a7da2

Procedure should have all docs from asset and announcement, but have only doc from asset

@Kuzmin pls confirm