feat: Added bridge from Rust to Python logging

[0x676e67]

This pull request introduces several significant changes to the rnet project, including the addition of logging features, updates to dependencies, and enhancements to the documentation and examples. The most important changes are outlined below:

Logging Features:

• Added a new [features] section to Cargo.toml to include optional logging dependencies (pyo3-log and log) [1] [2].
• Updated src/lib.rs to conditionally use the log and pyo3_log crates for logging when the logging feature is enabled [1] [2].
• Modified src/dns.rs to log errors using the log crate when the logging feature is enabled.

Documentation and Examples:

• Updated the description in README.md to improve clarity and readability.
• Added a new example script examples/logger.py demonstrating how to use the rnet library with logging enabled.