Some response parameters from GET /infra-optim/v1/data_model
endpoint are missing from api-ref documentation. This patch
updates the doc to include them.
For more details see, LP #2117726
Closes-Bug: #2117726
Change-Id: Iaa775f56bb8167d9c6b458cd07f1ec3cefaf70fe
Signed-off-by: Douglas Viroel <viroel@gmail.com>