hh-mm-ss Time Formatting Utility

The `hh-mm-ss` package provides a lightweight and focused utility for converting time representations between numerical values (seconds or milliseconds) and formatted strings like `hh:mm:ss`. Currently stable at version `1.2.0`, the library appears to have a conservative release cadence, with updates primarily focused on adding new format support and convenience methods incrementally, rather than frequent major changes. Its core differentiator lies in its specialization, offering a simpler alternative to larger, more comprehensive date-time libraries by focusing solely on common `hh:mm:ss` patterns and handling ambiguities with optional format parameters. It supports various time string patterns, including `mm:ss`, `hh:mm`, `hh:mm:ss`, and their millisecond-inclusive variants like `mm:ss.sss`, with a mechanism to automatically extend output formats to preserve precision when milliseconds are present.