Add possibility to fetch historical groups for facilities
Set processing group count to 0 if it's negative
Merge pull request #162 from lwyszomi/negative-deliverygroups-count-fix

Set processing group count to 0 if it's negative
Merge pull request #163 from lwyszomi/historical_groups

Add possibility to fetch historical groups for facilities
Added another part of facilities to update
Merge pull request #165 from lwyszomi/update_facilities_codes

Added another part of facilities to update