Add parsing for support of new CCVPN model

Add parsing for support of new CCVPN model

Update the resource_list logic to create the resource as per new
CCVPN model.

e.g. new model UUI request to create the service with this input
     // [
        // { VFB1 : [GrpA1, GrA2, GrB1]},
        // { VFB2 : [GrpA1, GrB1]},
        // { VFA1 : [GrpC1]}
        // ]

should be converted to
// [
        // { VFA1 : [GrpA1, GrA2, GrB1]},
        // { VFA2 : [GrpA1, GrB1]},
        // { VFB1 : [GrpC1]}
        // ]

as per resource ordering.

Change-Id: I79a30d5080d2551eb7e1944cc4f25d5332d22d4f
Issue-ID: SO-1393
Signed-off-by: subhash kumar singh <subhash.kumar.singh@huawei.com>