[GtechGovind]

Fixes #121.

I added NamedCSV(string:header:) and NamedCSV(url:header:) for inputs without a header row. Supplied names map to every data row, including the first, without prepending synthetic CSV text or changing the public CSVView protocol.

Dictionary enumeration retains the first row too. Short rows receive empty values for missing columns; rows exceeding the supplied names throw a parse error. Existing header-present initializers keep their behavior. Delimiter guessing, UTF-8 BOM handling, optional columns and row limits work with the new initializers. Serialization includes the supplied header.

I added five regression tests covering first-row retention, columns, dictionary enumeration, serialization round trips, quoted/custom-delimiter input, BOMs, row limits, width errors, empty input and URL loading, plus usage documentation.

Validation:

• Baseline: 42 tests passed.
• Updated full SwiftPM suite: 47 tests passed.
• swift build passed.
• macOS Xcode build passed using a command-only deployment target of 12.0 for the installed SDK; project support settings are unchanged.
• git diff --check passed.
• SwiftLint ran on touched Swift files and reported existing style warnings; it was not a clean lint run.

Remote CI and other Apple-platform builds remain to be verified.