Deleted the outdated .idea/.gitignore file and migrated its contents to the main .gitignore file. This consolidates all ignore rules and improves project configuration clarity.

This commit deletes the .idea/modules.xml file. This change helps to clean up project-specific configuration files not necessary for version control.

The file pan-scm-sdk.iml is specific to IntelliJ IDEA and should not be tracked in the repository. This change helps prevent unnecessary file clutter and potential merge conflicts.

Introduced address, address group, and application endpoints to the `API_ENDPOINTS` dictionary. Defined new custom exception classes: `NotFoundError`, and `ConflictError`. All __init__.py files are also updated to ensure they end with a newline.

Introduce new test cases for `AddressClient` to validate `list_addresses` and `get_address` methods using mock responses. Extend coverage for the `Address` model by testing valid and invalid scenarios related to address types and containers.

Removed the entire `authentication.py` file due to unused exceptions. Enhanced the `AuthRequest` class with better documentation and added a new `AddressClient` class for address management. Additionally, improved error handling in `APIClient` and added logging.

Introduced three new modules containing endpoint definitions for addresses, applications, and address groups within the pan_scm_sdk package. These modules include CRUD endpoint mappings to streamline API interactions for these entities.

Enhanced OAuth2Client with an extensive docstring explaining its purpose, attributes, errors, and return values. This improves code maintainability and clarity for future developers.

Introduce a new Mermaid file to visualize the class relationships within the SDK. The diagram includes various nodes representing classes and their methods, enhancing the documentation's comprehensibility.

Previously, the `id` field was a required attribute for the Address model. This change makes the `id` field optional, providing more flexibility for instances where an ID may not yet be assigned.

Enhanced README.md to include comprehensive usage examples for authentication, creating, listing, updating, and deleting address objects. Added detailed descriptions of key features such as OAuth2 authentication, resource management, data validation, and exception handling.

# Conflicts:
#	pan_scm_sdk/models/address.py