Cisco NXoS template for "show forwarding ipv4 route"

[nnaukwal]

ISSUE TYPE

• New Template Pull Request

COMPONENT

cisco_nxos_show_forwarding_ipv4_route.template

SUMMARY

This change is to add a new template which can structurize the output of "show forwarding ipv4 route" from a Cisco NXoS platform.
The use cases can be many:

• Programmatically check FIB for a Prefix
• Collect and compare the FIB status before and after making a change to the network, to validate assumptions.

TESTING

• Tox Passes

<snip>
tests/test_structured_data_against_parsed_reference_files.py::test_raw_data_against_mock[tests/cisco_nxos/show_forwarding_ipv4_route/cisco_nxos_show_forwarding_ipv4_route.raw] PASSED                                     [ 89%]
<snip>
  py35: commands succeeded
  congratulations :)

• FIB output collected from multiple nxos 3548 in the network to broaden the available test dataset.