v0.4.57 Allow mapping several scenario netwoks on the same vim network. Change...

v0.4.57 Allow mapping several scenario netwoks on the same vim network. Change name at database table instance_nets from external to created

Change-Id: I46cab007c4c5d3cdbd515b477aa25ee373d3e6fd
Signed-off-by: tierno <alfonso.tiernosepulveda@telefonica.com>