NNETAR normalization when linout=FALSE.

[robjhyndman]

NNETAR currently normalizes the response variable. This is ok when linout=TRUE, but when linout=FALSE, a logistic activation function is used and the response is assumed to be binary. So it should not be normalized.

[mitchelloharawild]

Might need generalising into a new fable.nnet package - nnetar is only for simple ar.

[mitchelloharawild]

Suggest - improve docs to describe continuous response only.