SLIM-CLI Best Practices Bot Commit (Testing Plan)

[yunks128]

Purpose

The purpose of this PR is to introduce documentation for testing practices in Unity Common Services (Unity-CS). It outlines the testing architecture, including continuous and automated testing methodologies, and provides clear guidelines on static code analysis and unit testing.

Proposed Changes

• [ADD] Documentation: Added a comprehensive TESTING.md document that covers the testing categories (Static Code Analysis and Unit Tests), testing setup, and automation in Unity Common Services.
• [ADD] Instructions for manually and automatically running Static Code Analysis and Unit Tests.
• [ADD] Contributions guidelines for both Static Code Analysis (e.g., using SonarQube) and Unit Tests (e.g., using PyTest).

Issues

• No current issues directly related to this PR. The addition of the testing guidelines will help prevent future issues related to untested code and coding standard violations.