feat: :sparkles: add select statement in FastCRUD

[dubusster]

Pull Request Template for FastCRUD

Description

This PR aims to allow the forging of a raw select statement via FastCRUD, with sorting and filtering mechanisms included directly. This would act as a boilerplate saver when one is willing to create more advanced statements.

Changes

• added a select method in FastCRUD class

Tests

• test_select.py: Some test executing the raw select statement and compare it to the filtered results with the basic FastCRUD mechanism.

Checklist

• [x] I have read the CONTRIBUTING document.
• [x] My code follows the code style of this project.
• [x] I have added necessary documentation (if appropriate).
• [x] I have added tests that cover my changes (if applicable).
• [x] All new and existing tests passed.

Additional Notes

[igorbenav]

Really nice addition, @dubusster, thanks!