add cniSpec to HostDeviceRenderData and prettyPrint CNI JSON

[tariq1890]

Add cniSpec as a renderable object to HostDeviceRenderData and use go template to prettyPrint the cniSpec json

If this change looks okay, I can make this apply to all the other Net-Attach-Def renderers and update test cases

@adrianchiris @e0ne

[adrianchiris]

@e0ne @rollandf can you take a look on this one ?

[rollandf]

/retest-nic_operator_helm

[rollandf]

/retest-nic_operator_kind

[rollandf]

Looks good.
Do you have an example of the output before and after the change?

[rollandf]

Test for hostdevice fails:

10:35:10 TASK [projects/nic-operator-kind/test : Print tests results] *******************
10:35:10 task path: /jenkins/workspace/nic_operator_kind-ci/ansible/roles/projects/nic-operator-kind/test/tasks/main.yml:108
10:35:10 ok: [localhost] => {
10:35:10     "tests_results": {
10:35:10         "test-ofed-and-hostdevice-ib": "Failed",
10:35:10         "test-ofed-and-rdma": "Passed",
10:35:10         "test-rdma-only": "Passed"
10:35:10     }
10:35:10 }
10:35:10 
10:35:10 PLAY RECAP *********************************************************************
10:35:10 localhost                  : ok=283  changed=97   unreachable=0    failed=1    skipped=29   rescued=0    ignored=0 

[tariq1890]

@rollandf I think this is why the e2e tests fail. I should be specifying cniVersion as 0.3.1 instead of v0.3.1

[tariq1890]

Closing this PR as it doesn't perform the required formatting