Random Forest arguments

[NightlordTW]

Currently all random forest arguments are listed individually; we could use (...) to pass on RF arguments automatically. I dont think we need to specify them in the function call

[NightlordTW]

feedback gabrielle: if we can pass arguments using the three dots please do so. However, in the vignettes we still want to show how to use the optional arguments.

We may want to distinguish between arguments that have the same name but are used by multiple functions. Maybe some default values are also different between precmed and the arguments of the underlying functions. that is another argument for keeping the specific argument names