RealFaviconGenerator API Client

The `rfg-api` package provides a Node.js client for the RealFaviconGenerator's non-interactive API, enabling programmatic generation of favicons for various platforms including desktop browsers, iOS, and Android. Currently at version 0.5.3, the library focuses on integrating with the external API to manage favicon creation and asset generation. Release cadence appears to be driven primarily by bug fixes and dependency updates, particularly addressing security vulnerabilities in underlying HTTP clients and archive processors, rather than frequent new feature introductions. Its primary differentiator is its direct integration with the RealFaviconGenerator service, simplifying the complex process of generating a comprehensive set of favicons from a single master image. It largely operates using a callback-based asynchronous pattern.