Core: ResourcesManager: copy methods added.

- added methods for copying from one resource to another
 - copyAttributes
 - copyServices
 - copyGroups
- tests created one for each method
- removed unused exception ResourceNotExistsException from
  blImpl.assignGroupToResource
core:copyServices could cause attribute exceptions

ResourcesManager.copyServices could cause WrongAttributeValueException
or WrongReferenceAttributeValueException in case that the resource where
the services are copied to doesn't have correct attributes values set.
Merge copyMethods in resourcesManager

Based on pull request #114 with modification in copyServices method -
this method can cause attributes exceptions now
Add voId to Group and minor fix

- Add voId to object Group in beans
- remove AdminGroup from method listOfVoGroups
Merge pull request #115 from stavamichal/CLI-addVoIdToObjectGroup

Add voId to Group and minor fix