50 feat implement define ml model statement

[Oyelowo]

• Core Functionality: This update implements a DEFINE MODEL statement which allows defining ML models in the database, offering an intuitive way to specify model names, versions, and flexible permission settings for CRUD operations, catering to various security requirements.

  Technical Enhancements:

• New Type: LiteralLike: simplifies the representation of string literals and parameters.
• User-Friendly Syntax: Craft DEFINE MODEL and REMOVE MODEL statements with minimal hassle.
• Customizable Permissions: From no access to full control, set permissions as needed.
• Make generation migration statements' ordering deterministic and add automated tests for those.

Example Usage:

let statement = define_model(model_name)
      .version("1.2.3")
      .permissions(for_permission(Select).where_(age.greater_than_or_equal(18))) // Single works
      .permissions(for_permission([Create, Update]).where_(name.is("Oyelowo"))) //Multiple
       // even supports more complex permission nested in an array
       .permissions([
           for_permission([Create, Delete]).where_(name.is("admin su")),
           for_permission(Update).where_(age.less_than_or_equal(130)),
        ]);