Robot-test-creator

Added

- Parameter `--no-title-case/-nt` flag to prevent title casing test case and keywords names

Fixed

- Converted any tabs to spaces in generated .robot files
- Do not add `No Operation` to the keywords which have steps

Added

- Parameter `--output_dir/-o` to set directory where files are created
- Added possibility to add libraries into suite using `libraries` column
- Manual steps are added into a step keyword as sub keywords
- Add possibility to generate `tasks` instead of `test cases`

Fixed

- How to handle merged cells

Changed

- Updated dependencies

Fixed

- Example file modifications