zmij 0.1.0

New features

• Added format_double() for vectorized, round-trip-safe formatting of double-precision values using the vendored Rust zmij implementation (#1).
• Added parse_double() for correctly rounded conversion of decimal strings back to double-precision values (#1).
• Numeric and character vectors, matrices, and arrays are supported. Names, dimensions, and dimension names are preserved, with explicit handling of missing values, NaN, infinities, signed zero, and empty inputs.