CLOUDSTACK-4224
UCS:UI: Delete UCS returns unknown API
CLOUDSTACK-4259 Dedicated Resources: createAffinityGroup API should not allow admin to create the group of this type through API

Changes:
- Block API from creating this type of group
CLOUDSTACK-4222: [VMWare] NPE: VM Failed to start after Volume Migration

- ExplicitDedicationProcessor should process only if group of this type is used!