Allow multiple resolution for same node template

- also fixing default mechanism
- fixes rest resolution when NullNode is returned as input value
- fixes rest resolution when data type specified so raw json isn't
returned, only the parsed json based on the data type

Change-Id: I1f4a35c6c97000b52620c9b0cc911f15016c4e80
Issue-ID: CCSDK-1422
Signed-off-by: Alexis de Talhouët <adetalhouet89@gmail.com>
6 files changed