Refactor Namespace and Seald Classes in Microsoft.ML.AutoML.SourceGenerator Project

[mhshahmoradi]

Summary

This PR refactors the namespace for the Microsoft.ML.ModelBuilder.SweepableEstimator.CodeGenerator to Microsoft.ML.AutoML.SourceGenerator. This change aligns the namespace with the new project structure and organizational conventions.

Changes

• Updated the namespace from Microsoft.ML.ModelBuilder.SweepableEstimator.CodeGenerator to Microsoft.ML.AutoML.SourceGenerator across all files in the project.

Justification

The namespace change is intended to better reflect the purpose and context of the code within the Microsoft.ML.AutoML.SourceGenerator project. By aligning the namespace with the project's new structure, we improve code organization and maintain consistency with other parts of the codebase.

Impact

• This change will require updating references to the affected namespace in other parts of the codebase and any related documentation or tests.
• Ensure that any dependent projects or modules are updated to use the new namespace.

Testing

• All existing tests have been run to ensure that the namespace change does not introduce any issues or regressions.
• Verify that all references and imports in the codebase are updated accordingly.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 68.90%. Comparing base (fa8c822) to head (a6ca6a9). Report is 2 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #7223 +/- ## ======================================= Coverage 68.89% 68.90% ======================================= Files 1441 1441 Lines 270827 270827 Branches 28019 28019 ======================================= + Hits 186584 186607 +23 + Misses 77038 77012 -26 - Partials 7205 7208 +3 ``` | [Flag](https://app.codecov.io/gh/dotnet/machinelearning/pull/7223/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=dotnet) | Coverage Δ | | |---|---|---| | [Debug](https://app.codecov.io/gh/dotnet/machinelearning/pull/7223/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=dotnet) | `68.90% <ø> (+<0.01%)` | :arrow_up: | | [production](https://app.codecov.io/gh/dotnet/machinelearning/pull/7223/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=dotnet) | `63.42% <ø> (+0.01%)` | :arrow_up: | | [test](https://app.codecov.io/gh/dotnet/machinelearning/pull/7223/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=dotnet) | `89.03% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=dotnet#carryforward-flags-in-the-pull-request-comment) to find out more. [see 7 files with indirect coverage changes](https://app.codecov.io/gh/dotnet/machinelearning/pull/7223/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=dotnet)

[LittleLittleCloud]

LGTM, thanks @mhshahmoradi