Arxiv paper update for tabular recollection

[Neeratyoy]

Main changes/updates:

• The raw ML benchmarks API now offers the option to record Learning curves for a specified iteration interval
• The tabular ML benchmarks have been updated (LR also contains LCs)
• Redundant files removes
• Container versions updated

[Neeratyoy]

#177 is the updated, cleaner PR.