showclock/timezones cmd cli formatter

[Sreevanich16]

What I did

Onboarded show clock/timezones commands formatter which will convert json format to CLI format

How I did it

Used base formatters

How to verify it

PS Q:\src\sonic-utilities.msft> python -m unittest show_gnmi_util.test.test_formatters -v
test_format_basic (show_gnmi_util.test.test_formatters.TestShowClockFormatter.test_format_basic)
Test basic clock formatting ... ok
test_format_different_date (show_gnmi_util.test.test_formatters.TestShowClockFormatter.test_format_different_date)
Test formatting with different date string ... ok
test_format_empty_date (show_gnmi_util.test.test_formatters.TestShowClockFormatter.test_format_empty_date)
Test formatting with missing date ... ok
test_format_basic (show_gnmi_util.test.test_formatters.TestShowClockTimezonesFormatter.test_format_basic)
Test basic timezones formatting ... ok
test_format_empty_timezones (show_gnmi_util.test.test_formatters.TestShowClockTimezonesFormatter.test_format_empty_timezones)
Test formatting with empty timezone list ... ok
test_format_no_timezones_key (show_gnmi_util.test.test_formatters.TestShowClockTimezonesFormatter.test_format_no_timezones_key)
Test formatting when timezones key is missing ... ok
test_format_single_timezone (show_gnmi_util.test.test_formatters.TestShowClockTimezonesFormatter.test_format_single_timezone)
Test formatting with single timezone ... ok
test_format_basic (show_gnmi_util.test.test_formatters.TestShowVersionFormatter.test_format_basic)
Test basic formatting ... ok
test_format_with_docker_images (show_gnmi_util.test.test_formatters.TestShowVersionFormatter.test_format_with_docker_images)
Test formatting with docker images ... ok
test_nil_values (show_gnmi_util.test.test_formatters.TestShowVersionFormatter.test_nil_values)
Test handling of nil values ... ok
test_empty_data (show_gnmi_util.test.test_formatters.TestShowVlanBriefFormatter.test_empty_data)
test_format_basic (show_gnmi_util.test.test_formatters.TestShowVlanBriefFortest_format_basic (show_gnmi_util.test.test_formatters.TestShowVlanBriefFormatter.test_format_basic)
Test basic VLAN formatting ... ok
Test basic VLAN formatting ... ok
test_multiple_ports (show_gnmi_util.test.test_formatters.TestShowVlanBriefFormatter.test_multiple_ports)
Test formatting with multiple ports ... ok

---

Ran 13 tests in 0.004s

OK

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

This is new utility, we don't have previous output. The output should be similar to existing CLI, hence pasting CLI o/p =>

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

[Sreevanich16]

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[sharmavijay-ms]

1.Please move to 202112 instead of master.
Reason: Master looks outdated and no recent change. Also, we used 202412 for FW P0 development, same branch makes more sense than master.

2. Use tabulate for conversion.

3. We need to upload UT test results. For details:
   https://github.com/sonic-net/sonic-utilities?tab=readme-ov-file#to-run-unit-tests