[Feature]: @o3r/create should generate end-of-line LF config

### Context

When generating a project using `@o3r/create`, do we want the generator to automatically add the LF end-of-line config?



### Proposal

To handle the LF config, we could:
1. Add the following line in `.editorconfig` file: `end_of_line = lf`.
2. Generate a `.gitattributes` file containing at least this line: `* text eol=lf`.