Would be nice to have a "make everyting use future" function

Using load hooks, it should be possible to implement a single function that tells every parallel package that can do so (BiocParallel, foreach, ...?) to use the future backend, even packages that haven't been loaded yet. This would replace the several lines of boilerplate required to do the same thing manually and hopefully make it much friendlier to new users of the package.

See https://stat.ethz.ch/R-manual/R-devel/library/base/html/userhooks.html

I might take a stab at implementing this.