update install file
don't autogenerate connection id and global id in onsa tool
update interfaces to fit with nsi2 and update nsiservice usage
update nsi2 requester interface usage
update simple backend to use new nsi interface (partially at least)
rename simplebackend to generic backend, as it isn't that simple
remove nsiservice, aggregator has taken over
update nsi2 requester client to new http api
update provider service to use utc time with no tz for service level
update provider client to use new http api
update table name for generic backend
add nsi header dto and remove endpoint method from nsa as it has the same name as an attribute which messes up things