v3.8.2: Memory friendly outputs, progress bars for Pareto-front models, bugs and docs

• Feat: new status bars for Pareto-Front models per trial to provide information on calculation status
• Feat: included carryover results into pareto_aggregated.csv output and OutputCollect$xDecompAgg$carryover_pct
• Feat: new error message shows which hyperparameters inputs are missing #543
• Fix: substantially reduced the size of robyn_run() and robyn_outputs() results (around -80% compared with 3.8.1 version's size) by removing redundant and unused data from outputs #534
• Fix: invalid argument type in check_factorvars() and issue recreating calibrated models #520
• Fix: add_penalty_factor parameter now works correctly with JSON files and robyn_refresh() #543
• Fix: correct hyper-parameters length for custom data #533
• Fix: bug in RobynLearn when checking numerical data #532
• Fix: removed .iData format for legacy demo .RData files
• Fix: passing custom pareto_fronts input instead of "auto" now works as expected
• Docs: updated released version on website, meta.com emails, update CRAN link on robyn_update()

Full Changelog: v3.8.0...v3.8.2