Draft: Refacto: centralize duckdb related logic

What does this MR do?

Context

Road to a plugin package which comes with duckdb binary on Windows.

Goals

This MR aims to move every code related to duckdb library calls in one place to facilitate imports, dependency management but also code readability and modularity.

Related issues

Closes #8 (closed)

Related to !42 (merged) and #5 (closed)

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Checklists

Author's checklist

• I've read the contribution guidelines and affirm:
  • my branch has been created from main
  • if the code is not completely achieved, I apply the Draft/WIP prefix
  • the DOD is satisfied specially tests
• assign myself (the MR creator will automatically be assigned)
• the box Delete source branch when merge request is accepted. is checked

Reviewer's checklist

• assign yourself as Reviewer and remember that others developers can comment too