insight 1.5.0

Changes

• New function, get_simulated(), to return simulated values from the response
  of regression models, which is comparable to posterior predictions from a
  model.

• Improved performance of find_parameters() for models from package mgcv
  that include random effects.

• Improved performance of find_parameters() and get_statistic() for models
  from package mgcv that include random effects.

• get_predicted() supports models from package nestedLogit.

• Added support for aft, stpm2, and pstpm2 models from package rstpm2.
  find_formula(), find_variables(), get_data(), and model_info() now
  work with these flexible parametric survival models.

Bug fixes

• Fixed issue with duplicated link_inverse() and missing link_function() for
  phyloglm models.