[0.1.0]Breaking changes: Reactoring models Part 1

[Wh1isper]

Description

Motivation and Context

• Intro DiscreteInspector for CTGAN, which useful for guessing discrete columns
• Metadata support(vanilla version for now)
• Drop BSL packages, use their MIT Lincensed code

How has this been tested?

Types of changes

• Maintenance (no change in code, maintain the project's CI, docs, etc.)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.

[sweep-ai]

Apply Sweep Rules to your PR?

• Apply: All new business logic should have corresponding unit tests.
• Apply: Refactor large functions to be more modular.
• Apply: Add docstrings to all functions and file headers.

[Wh1isper]

Due to sdv-dev changed their license to BSL License, we copy the MIT licensed code into sdgx/models/components/sdv_*

See NOTICE: https://github.com/hitsz-ids/synthetic-data-generator/pull/68/files#diff-dfb14fbb9e7d095209ec4cfd621069437bf9c442ff9de9d4ce889781bd0fefcf

[Wh1isper]

@MooooCat

This is the first part of the refactoring model, mainly for the preparation of the replacement of CTGAN, which involves Inspector, Metadata and the replacement of BSL related packages(in #69).

In the second part, I will replace the current CTGAN implementation with our custom SynthesizerModel. This will achieve the basic functionality of version 0.1.0(as an library). And it will be the first preview version.

After this, I hope we can port the performance optimisations and compatibility modifications that we did before. A series of documentation updates and development of CLI tools will also be needed.

[Wh1isper]

For the sake of review, I've split the PR into two parts, the first being the Inspector and Metadata changes, and the other being the BSL Licence changes.

@MooooCat If there are no problems, I will first merge the second part into the 0.1.0-refactoring-model branch: #69 and merge this pr into main after passing the CI.

[MooooCat]

For the sake of review, I've split the PR into two parts, the first being the Inspector and Metadata changes, and the other being the BSL Licence changes.

@MooooCat If there are no problems, I will first merge the second part into the 0.1.0-refactoring-model branch: #69 and merge this pr into main after passing the CI.

Cool, some algorithm-related branches in development may also synchronize the latest components.