butcher 0.2.0

• Added an axe_fitted() method to butcher the template slot for prepped
  recipes (@AshesITR, #207).

• Added butcher methods for glm() (#212).

• Removed axe_fitted() and axe_ctrl() for xgboost, because these methods
  caused problems for prediction (#218).

• Moved usethis and fs to Suggests (#222).

• Removed fastICA and NMF from Suggests. fastICA requires R >= 4.0.0 now, and
  NMF is often hard to install and was only used for one test (#201).

• Preemptively fixed a test related to a recipes change in step_hyperbolic()
  (#220).

• Transitioned unit tests to make use of modeldata::Sacramento rather than
  modeldata::okc in anticipation of okc's deprecation in an upcoming
  release of modeldata (@simonpcouch, #219).