Change pf-tools to only depend on pf-core

[chenslucky]

Description

This PR contains:

• Task 3066832: Change pf root namespace to existing substitutes in pf-core
• Task 3066836: Remove pf-azure/pf-devkit dependency for AOAI-GPTV tool and new LLM tool
• Task 3066837: Remove pf-devkit dependency (get_workspace_triad_from_local) by using common error message for vision model used in llm

Test image: promptflow.azurecr.io/promptflow-runtime:pr-1344775-v4

Exp link: https://ml.azure.com/prompts/flow/cfa1c054-13cb-4cfc-b3a6-359bf0493da9/d44ab050-7de4-4e8e-9adc-196cfceb706d/details?wsid=/subscriptions/96aede12-2f73-41cb-b983-6d11a904839b/resourceGroups/chesi-eastus/providers/Microsoft.MachineLearningServices/workspaces/chesi-promptflow&flight=pfnewllm,pfflowleveltool&tid=72f988bf-86f1-41af-91ab-2d7cd011db47
include tools:

• old/new llm
• old/new llm-vision
• embedding
• content safety

get instance tests: old llm-vision uses dynamic list and uses "get_instance.get" to get connection obj, then selects the correct deployment name.

All Promptflow Contribution checklist:

• The pull request does not introduce [breaking changes].
• CHANGELOG is updated for new features, bug fixes or other significant changes.
• I have read the contribution guidelines.
• Create an issue and link to the pull request to get dedicated review from promptflow team. Learn more: suggested workflow.

General Guidelines and Best Practices

• Title of the pull request is clear and informative.
• There are a small number of commits, each of which have an informative message. This means that previously merged commits do not appear in the history of the PR. For more information on cleaning up the commits in your PR, see this page.

Testing Guidelines

• Pull request includes test coverage for the included changes.

[chjinche]

please avoid using import path startswith _, replace them with public methods.

[chjinche]

please confirm if there are public import ways

[github-actions]

Hi, thank you for your interest in helping to improve the prompt flow experience and for your contribution. We've noticed that there hasn't been recent engagement on this pull request. If this is still an active work stream, please let us know by pushing some changes or leaving a comment.

[github-actions]

Hi, thank you for your contribution. Since there has not been recent engagement, we are going to close this out. Feel free to reopen if you'd like to continue working on these changes. Please be sure to remove the no-recent-activity label; otherwise, this is likely to be closed again with the next cleanup pass.