ported commit 8ee1035ccf27001fff7c847189af49eea60c95a5 from USM-RCG:  field worker password hash required not null
ported commit 8ee1035ccf27001fff7c847189af49eea60c95a5 from USM-RCG:  field worker password hash required not null

SwissTPH/openhds-server,SwissTPH/openhds-server,SwissTPH/openhds-server