ISN Fabric Support for dcnm_fabric module.

[allenrobel]

Summary

This PR, when merged, provides support for the ISN (Inter-Site Network) fabric type (also known as Multi-Site External Network).

Branch

fabric_isn created off of branch develop

CODE FUNCTIONAL CHANGES

plugins/module_utils/fabric/fabric_types.py

• Add changes for ISN fabric

DOCUMENTATION

• dcnm_fabric.py

  • Update DOCUMENTATION section to include parameters for ISN fabric type.

• docs/cisco.dcnm.dcnm_fabric_module.rst

  • Update with parameters for ISN fabric type.

• docs/cisco.dcnm.dcnm_maintenance_mode_module.rst

  • This was missing. Adding it as part of this commit.

• README.md

  • Add dcnm_maintenance_mode link

INTEGRATION TESTS

• playbooks/roles/dcnm_fabric/dcnm_tests.yaml

  • Added IT for ISM delete, merged, replaced

• tests/integration/targets/dcnm_fabric/tests/*.yaml

  • Added the following tests - dcnm_fabric_deleted_basic_isn.yaml - dcnm_fabric_merged_baeic_isn.yaml

• Modified the following tests (tests were modified to include ISN)

  • dcnm_fabric_deleted_basic.yaml

• Modified the following tests (only comments are modified)

  • dcnm_fabric_deleted_basic_ipfm.yaml
  • dcnm_fabric_deleted_basic_lan_classic.yaml
  • dcnm_fabric_deleted_basic_vxlan.yaml

UNIT TESTS

• tests/unit/modules/dcnm/dcnm_fabric/test_fabric_types.py
  • Updated all tests to include ISN fabric type