bl01: refresh fixes and improvements + others

[laresbernardo]

After testing with few beta users on bl01 branch, it's good to land.

• fix: several bugs when refreshing with robyn_refresh() - non-existing folders, cluster = FALSE, CSV exports, ts_validation, window_end inherited
• fix: penalties hyperparameters checked correctly when recreating a model that used penalization
• fix: similar plotting scales for refresh plots when performance is too large to improve readability (refresh_plots_json())
• feat: new add_data parameter in robyn_write() to include raw data. When used, dt_input is not required to recreate model
• feat: improved chain logic on refresh models. If user is not following chained directories but models are available in plot_folder, they will be loaded and used
• feat: recreate InputCollect when RobynModel-models.json provided (no selected model)

This is still version 3.10.7 but will be CRAN's 3.11.0 if no bugs or issues are reported within a week or so after it lands (@gufengzhou)

[gufengzhou]

LGTM