Generated parameter documentation

[Tamschi]

Is your feature request related to a problem? Please describe.

Currently, there is no easily visible documentation for which arguments a component accepts.
The args builders are largely hidden from documentation.

Describe the solution you'd like

Ideally, the parameters docs should be appended as bulleted list to the documentation of the component itself. Doc comments placed on parameter declarations should be taken into account and they should also be replicated on the builder's setter methods.

Describe alternatives you've considered

An eventual args builder rework may solve this differently, but that is still a way off.

Additional context

This issue came about because the individual component methods don't have documentation attached and as such produce warnings, but that is not directly related, since the method docs currently aren't surfaced in the IDE. (Ideally, they would be, but I'm unsure where I should put them.)