feat(ingest): add sync mode to update ingest command
feat(ingest): add sync mode to update ingest command

to run update from command line which can take as much time as needed,
in order to able to import old archive

SDESK-3666

ioanpocol/superdesk-core,mdhaman/superdesk-core,superdesk/superdesk-core,petrjasek/superdesk-core,ioanpocol/superdesk-core,superdesk/superdesk-core,mdhaman/superdesk-core,ioanpocol/superdesk-core,petrjasek/superdesk-core,superdesk/superdesk-core,petrjasek/superdesk-core,mdhaman/superdesk-core,superdesk/superdesk-core,petrjasek/superdesk-core