~dricottone/pkgbuilds

ref: 2d31acd9a2f06b991b57e9d464d0151acb3e24a8 pkgbuilds/r-pkgconfig d---------
Initial commit

A long journey to packaging r-tidyverse. The current highest-level
packages that are successfully built are dtplyr, waldo, callr, and xml2.
A handful of others (brio, digest, praise, units, zeallot) are currently
freestanding but will become dependencies soon.