Update development scripts
This changeset is mostly follow-up after merges in DCAEGEN2-1063
- new options for hv-ves hostname and port in xnf simulations scripts
- new option for disabling SSL in xnf simulations scripts
- fail start-simulation script on not completing all simulations
- use docker-healthchecks to determine xNF simulator readiness in
development scripts
- fix logging in xNF simulator on closing connection
- minor corrections in logs and usage for development scripts
Change-Id: Ic939a139fdaf86ad487e0b31d6abcfc6c8a28885
Issue-ID: DCAEGEN2-1063
Signed-off-by: Filip Krzywka <filip.krzywka@nokia.com>