ONTAP SVM Support

[kei-git]

Issue/Feature Description:
SODA doesn't have the capability about ONTAP SVM user auth and SVM Interface.
To access ONTAP, SODA need to use ONTAP Cluster admin ID and Cluster management Interface.

Why this issue to fixed / feature is needed(give scenarios or use cases):
Service providers normaly provides multi-tenant storage service by SVM.
If SODA use only Cluster admin/mgmt, another tenant customer could access another tenant's storage resource through SODA.

How to reproduce, in case of a bug:
This is a feature request.

Other Notes / Environment Information: (Please give the env information, log link or any useful information for this issue)