T7988: adjust function name to distinguish compare from show config

[jestabro]

Change summary

NOTE: this PR will be updated with revised commit hashes, following the merge of
vyos/vyos1x-config#56
vyos/vyconf#35

In addition, it adjusts some internal function names to distinguish between the existing compare command (which is already vyconf aware) and the show command.
Given the function name changes, package integration will fail until the above PRs are merged and commit refs updated.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Code style update (formatting, renaming)
• Refactoring (no functional changes)
• Migration from an old Vyatta component to vyos-1x, please link to related PR inside obsoleted component
• Other (please describe): internal update

Related Task(s)

Related PR(s)

vyos/vyos1x-config#56
vyos/vyconf#35

How to test / Smoketest result

Checklist:

• I have read the CONTRIBUTING document
• I have linked this PR to one or more Phabricator Task(s)
• I have run the components SMOKETESTS if applicable
• My commit headlines contain a valid Task id
• My change requires a change to the documentation
• I have updated the documentation accordingly

[github-actions]

👍
No issues in PR Title / Commit Title

[github-actions]

CI integration ❌ failed!

Details

CI logs

• CLI Smoketests (no interfaces) ❌ failed
• CLI Smoketests VPP ❌ failed
• CLI Smoketests (interfaces only) ❌ failed
• Config tests ❌ failed
• Config tests VPP ❌ failed
• RAID1 tests ❌ failed
• TPM tests ❌ failed

[sever-sever]

Replace show diff with diff_compare

[c-po]

Function name renaming.