Utilsforecast

Bug fixes
* support A as yearly frequency in fill_gaps by jmoralez in https://github.com/Nixtla/utilsforecast/pull/81

Enhancement

- support quarters in fill_gaps jmoralez (80)

Bug Fixes

- fix counts_by_id sorting for pandas jmoralez (79)

Enhancement

- speed up sorted dataframe check jmoralez (78)

Bug Fixes

- Make regular expression into raw string jlopezpena (75)

Enhancement

- support target_col=None in process_df jmoralez (77)
- Create CODE_OF_CONDUCT.md tracykteal (76)

Bug Fixes

- fix scaled_crps for pandas jmoralez (74)

New Features

- support hours in fill_gaps jmoralez (73)