Modify instance resource list creation

Modify instance resource list creation

Modify instance resource list creation to avoid hard locking of
model name in UUI request.

e.g.
VF resource and gruop resource has resource input
vf { resource_input : { key1:value2, key2:[vf_prop_list,INDEX,key]|default}

Derive the key ("vf_prop_list") from resource input and use this
info to map UUI request.

UUI req:
{
...
  resourceInput: {
          vf_prop_list :   /// mapped with resource input of resource
                  {
....

Change-Id: Ic40079a094b2628bcf6f5758121b7492ee3c1353
Issue-ID: SO-1393
Signed-off-by: subhash kumar singh <subhash.kumar.singh@huawei.com>