Request: Add solver runtime information to `cp_als` output

[jeremy-myers]

cp_als returns a small amount of information relative to other methods (e.g., cp_apr).

cp_als output fields

• params : tuple of (stoptol, maxiters, printitn, dimorder)
• iters: number of iterations performed
• normresidual: norm of the difference between the input tensor and ktensor factorization
• fit: value of the fitness function (fraction of tensor data explained by the model)

Suggested additions:

• times (e.g., in cp_apr)