add fitted values, residuals, and other common outputs to an augment call

Add fitted values, residuals, and other common outputs to the value returned from augment.

augment_columns(x, data, newdata, type, type.predict = type,
  type.residuals = type, se.fit = TRUE, ...)

Arguments

x	a model
data	original data onto which columns should be added
newdata	new data to predict on, optional
type	Type of prediction and residuals to compute
type.predict	Type of prediction to compute; by default same as `type`
type.residuals	Type of residuals to compute; by default same as `type`
se.fit	Value to pass to predict's `se.fit`, or NULL for no value
...	extra arguments (not used)

In the case that a residuals or influence generic is not implemented for the model, fail quietly.