As explained in #110, the dangling parameters for methods keep on complicating development.
A full code refactoring is too much work for now, but I did a little refactoring which consists in:
- Merge `Flags` into `ConfigData`, and remove anything related exclusively to flags.
- Any method that uses arguments from `ConfigData` gets instead a `conf: ConfigData` argument.
- `get_jinja_renderer()` removed; it's not useful as its little work can easily be done by `Renderer` itself.
This way, whenever we need a new config, we can just add it to `ConfigData` and use it more widely.
A full refactoring is still needed IMHO, where we have a main `Copier` class which handles its state and everything it needs (or it could be `CopierApp` instead), but that's more a design decision to be taken by the project leader.
@Tecnativa TT20357
