ffi-string 1.0.3

## 1.0.3

24/12/28

- Improved documentation
- Removed `to_ffi_string()` from `StringToFFI` because it is already available with String's `Deref<Target = str>`

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## 1.0.2

24/12/20

- Added `to_ffi_str()` and `to_ffi_string()` to &str
- Added `to_ffi_string()` and `into_ffi_string()` to String

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## 1.0.1

24/12/20

- Added `Debug` to both types
- Added `Clone` to both types
- Added `Copy` to FFIStr

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## 1.0.0

24/12/20

- Initial creation and release