Added
- Added font formatting support to chart titles, legends, axes and data labels
via [`ChartFont`] and various `set_font()` methods.
- Made [`Worksheet::write_string()`] and [`Worksheet::write()`] more generic via
`impl Into<String>` to allow them to handle `&str`, `&String`, `String`, and
`Cow<>` types.
See [GitHub Feature Request 35].
[`ChartFont`]: https://docs.rs/rust_xlsxwriter/latest/rust_xlsxwriter/chart/struct.ChartFont.html
[`Worksheet::write()`]: https://docs.rs/rust_xlsxwriter/latest/rust_xlsxwriter/worksheet/struct.Worksheet.html#method.write_string
[`Worksheet::write_string()`]: https://docs.rs/rust_xlsxwriter/latest/rust_xlsxwriter/worksheet/struct.Worksheet.html#method.write_string
[GitHub Feature Request 35]: https://github.com/jmcnamara/rust_xlsxwriter/issues/35