make SQL entities to create their projection

[ghubertpalo]

Content

This PR includes a code rework that remove the need of creating dedicated Projection structures that work always the same way. It makes SqLiteEntity to return the Projection that can hydrate them. This removes a good part of boilerplate to use Providers.

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[github-actions]

Unit Test Results

    3 files    28 suites   2m 36s ⏱️
339 tests 339 ✔️ 0 💤 0 ❌
392 runs  392 ✔️ 0 💤 0 ❌

Results for commit c11aa24.