Bug fixes November 5th

Bug fixes November 5th

building block validator test now passes
added buildingblockvalidator process instance test
Retrieve actual error from WorkflowExceptionErrorMessage when the error
message is empty, not only when null.
Propagate orchestrationStatusValidationResult values from BB to BB.
corrected use of constructor for AaiUtil
use AaiUtil method to create path for get call
modified how allotted resource urls are constructed
- Removed the findExistingVnfcInstanceGroup method.  It is not required
to check this because the vnfResourceCustomization is always a new
object at this location.
Enable multiStage VF Module Create processing only when aLaCarte flag
is on.

Change-Id: If8cf397a84abc290e67e287d5b2264dd226398bc
Issue-ID: SO-1188
Signed-off-by: Benjamin, Max (mb388a) <mb388a@us.att.com>