HTTP Range Header Parser

The `http-range` package provides a Node.js-specific parser and creator for HTTP/1.1 `Content-Range` and `Range` header fields. It offers dedicated classes `ContentRange` and `Range` for handling these headers, allowing developers to parse incoming header strings into structured objects and construct valid header strings from component parts. Additionally, it exposes a `RangeSpec` class for granular control over individual range specifications. The package is currently at version 1.0.0, indicating a stable and mature API. Its primary focus is on strict adherence to RFC2616 specifications for range headers, differentiating it by offering distinct classes for both Content-Range and Range headers rather than a single generic utility function. Release cadence is not explicitly defined but the project appears to be stable with a specific and limited scope.