[202405][wcmp]: Add W-ECMP CLI

[nazariig]

Signed-off-by: Nazarii Hnydyn nazariig@nvidia.com

HLD: sonic-net/SONiC#1629

What I did

• Implemented CLI for Weighted-Cost Multi-Path feature

How I did it

• Integrated Weighted-Cost Multi-Path interface into config and show CLI root

How to verify it

1. Run Weighted-Cost Multi-Path CLI UTs

Details if related

• Backport from master: Add W-ECMP CLI #3253

Previous command output (if the output of a command-line utility has changed)

• N/A

New command output (if the output of a command-line utility has changed)

admin@sonic:/home/admin# show bgp device-global
TSA      WCMP
-------  -------
enabled  enabled
admin@sonic:/home/admin# show bgp device-global --json
{
    "tsa": "enabled",
    "wcmp": "enabled"
}

[nazariig]

/azpw run

[mssonicbld]

/AzurePipelines run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[volodymyrsamotiy]

@bingwang-ms, FYI (separate 202405 PRs for cherry-picking it)

[bingwang-ms]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[nazariig]

@bingwang-ms just a kind reminder

[liat-grozovik]

@bingwang-ms can you please help to merge?

[nazariig]

@liat-grozovik can you please help to merge?