Missing encoding times for image data in 2stage models

[janfrancu]

Fit/encoder time of first stage model is not returned in case of loading encodings of image data

GenerativeAD.jl/src/models/utils/two-stage.jl

Line 99 in 9e2ef18

return data, split(encoding_path, "/")[end], encoder_params

but is present in tabular

GenerativeAD.jl/src/models/utils/two-stage.jl

Line 74 in 9e2ef18

return data, split(encoding_path, "/")[end], encoder_params, model["fit_t"]

[janfrancu]

I have been able to recover the training time of the first stages using lookup table only for reported (vae_ocsvm and vae_knn). Encoding time has been approximated by total evaluation time of all data splits.