Clock commands management HLD

[Meir-renford]

This is a PR for community review of clock commands management high level design.

Repo	PR title	State
sonic-utilities	[Clock] Implement clock CLI
sonic-buildimage	[Clock] Implement clock CLI
sonic-host-services	[Clock] Implement clock CLI
sonic-mgmt	[Clock] Implement clock CLI

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: Meir-renford (a4968d6, 428521c, 8775600, e4607f9, d6bd0f1, 9a38f25, 8fe9815, 0217fc0, 54dd6e6)

[zhangyanzhao]

The HLD is reviewed in SONiC community meeting on 1/17/2023

[zhangyanzhao]

Please remember to update https://github.com/sonic-net/sonic-utilities/blob/master/doc/Command-Reference.md with the new CLIs

[liat-grozovik]

@venkatmahalingam, @madhupalu @bsun-sudo @dharmaraj-gurusamy HLD is updated based on comments provided, please review and let us know if you have any further concern. if not please approve.

[dharmaraj-gurusamy]

Approved the HLD with the suggestion to fine tune the logic for upgrade scenario.

[Yuval-Mellanox]

@yxieca @madhupalu when do you expect to complete the code review? we want to merge it before the branching out happens

[madhupalu]

thanks for addressing the comments

[liat-grozovik]

PR is now merged. as the feature is planed for 202305 appreciate code PR review and feedback to be able not to skip the release timeline.

[liat-grozovik]

@Meir-renford @fastiuk the code PRs description is not aligned with the PR subjects. Can you please align?
for PRs which has nothing to do with the CLI please change the PR subject to align with the motivation of the PR.