Major improvements in documentation

[jzsmoreno]

Improved documentation and structure for pydbsmgr package

Description:

This pull request aims to enhance the overall quality and usability of the pydbsmgr package by refining its documentation and structure.

Details:

• Improved README file: A rewritten introduction that provides a clear overview of the package's features, modules, and usage.
• Enhanced module descriptions: Detailed explanations for each main module (pydbsmgr.main, pydbsmgr.utils.azure_sdk, and pydbsmgr.utils.tools) to help users better understand their functionality and how they can be used together.
• Reorganized directory structure: A more logical and consistent folder hierarchy that makes it easier to navigate the package's contents.
• Updated code comments: Additional inline documentation throughout the codebase, providing context for specific functions, classes, and variables.

These improvements will make pydbsmgr a more welcoming and intuitive experience for new users, while also helping existing contributors to better understand the package's inner workings.