CLOUDSTACK-2914: lbScheme Public should be specified in NetworkOffering
CLOUDSTACK-2914: lbScheme Public should be specified in NetworkOffering

NetworkOfferings now require a mandatory scheme in the
serviceCapabilityList to create a VPC loadbalancer on the public side.
This commit fixes the test for VPC networks. Additionally there needs to
be a fix for making this the default behaviour so as not to hurt the
backwards compatibility.

test still fails because of CLOUDSTACK-2915 however which is a related
network ACL backwards compat issue. See bug for more details.

Signed-off-by: Prasanna Santhanam <82219615980488abd2acc1a3d71cfb58f0b2b8b6@apache.org>

wido/cloudstack,jcshen007/cloudstack,DaanHoogland/cloudstack,DaanHoogland/cloudstack,resmo/cloudstack,GabrielBrascher/cloudstack,jcshen007/cloudstack,jcshen007/cloudstack,mufaddalq/cloudstack-datera-driver,mufaddalq/cloudstack-datera-driver,wido/cloudstack,mufaddalq/cloudstack-datera-driver,jcshen007/cloudstack,DaanHoogland/cloudstack,wido/cloudstack,resmo/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,resmo/cloudstack,DaanHoogland/cloudstack,GabrielBrascher/cloudstack,resmo/cloudstack,GabrielBrascher/cloudstack,wido/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,GabrielBrascher/cloudstack,resmo/cloudstack,jcshen007/cloudstack,mufaddalq/cloudstack-datera-driver,GabrielBrascher/cloudstack,GabrielBrascher/cloudstack,resmo/cloudstack,GabrielBrascher/cloudstack,mufaddalq/cloudstack-datera-driver,DaanHoogland/cloudstack,resmo/cloudstack,wido/cloudstack,wido/cloudstack,wido/cloudstack,mufaddalq/cloudstack-datera-driver