MagritteCoordinatorClient - Create new export from a source functionality

[misterbrunet]

Summary

Adding two new functions for the MagritteCoordinatorClient:

• api_add_extract_for_branch - returns a basic request.Response from POST "build/add-extract?branchName={branch_name}".
• create_new_extract_for_source - a wrapper for the function above which returns a str value of the newly created extract/source RID.

Attaching three screenshots from my Foundry ecosystem proving that I was able to obtain a single new extract/source RID using the create_new_extract_for_source function & how such newly created sync looks like.

1. Getting the export/sync RID in-code (during a debug session):

2. Overview of the new export present within the source object on Foundry:

3. New export RID matches the one obtained in code:

Checklist

• You agree with our CLA
• Included tests (or is not applicable).
• Updated documentation (or is not applicable).
• Used pre-commit hooks to format and lint the code.

[Copilot]

Pull Request Overview

Adds functionality to create a new extract (sync) for a source via MagritteCoordinatorClient.

• Adds api_add_extract_for_branch to POST build/add-extract.
• Adds create_new_extract_for_source wrapper constructing payload and returning JSON response.
• Extends imports with DatasetRid and TransactionType.

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