Ticket #47579 - add dbmon.sh
    
    Description: Porting dbmon.sh from
      https://github.com/richm/scripts/wiki/dbmon.sh
    to the 389-ds-base package.
    
    https://fedorahosted.org/389/ticket/47579
    
    Porting was reviewed by the author rmeggins@redhat.com (Thank you, Rich!!)