Fuel: Switch to new scenario/pod descriptions and enable 7 scenarios

Fuel: Switch to new scenario/pod descriptions and enable 7 scenarios

This change
- enables 7 scenarios by creating jobs for them: os_ha, os_odl-l2_ha,
os_odl-l3_ha, os_onos_ha, os_kvm_ha, os_ovs_ha, os_kvm_ovs_ha.
- enables the use of new scenario descriptions
- enables the use of new pod descriptions

Please note that
- all of the above is only valid for Ericsson POD2.
- no triggers have been defined as of yet. Jobs will manually be triggered
in the beginning for CI development purposes.

Apart from this, new jjb file and shell script have been created
temporarily in order not to break brahmaputra deployments. These
files will be merged once the fuel changes are cherry-picked to
brahmaputra branch.

Change-Id: I86479bde24aaaab415ca669aa55d706ba06e7fe4
Signed-off-by: Fatih Degirmenci <fatih.degirmenci@ericsson.com>