* Improve netapp_e_host module
Add host type strings for windows, windows cluster, linux and vmware to netapp_e_host module
Make host port information case-insensitive in netapp_e_host module
Fix port removal and default group.
Fix port reassignment in netapp_e_host module.
Fix port label or address change within existing host object in module netapp_e_host
Add unit and integration tests
* Created new unit test for netapp_e_host module