Handle Benders by batch with outer loop

[tbittar]

          Hmm when doing Benders by Batch the criterion is likely to be irrelevant, except for the last iteration where all batches have been solved, therefore I think in this case only the strategy with criterion computation at the end of Benders should be implemented, keep it like this for this PR, change it later

Originally posted by @tbittar in #789 (comment)

[tbittar]

Included in #809

[a-zakir]

OK! You have my attention ⚠️