Version 0.3

Changes

• See #83, #84
• Implemented get_hk_data() and get_taiwan_data() as internal functions to return case and death time series data from HK CHP and Taiwan CDC respectively
• Updated OWID source in data source lookup
• get_covid_df() now accepts a sources argument
  • "all": the default, returns JHU, WHO, Taiwan CDC, HK CHP
  • "WHO": WHO data as-is (china aggregated counts and no supplemental data)
  • "WHO+JHU": the "old" version containing WHO + JHU disaggregated data
  • "WHO+Primary": WHO data plus HK data from HK CHP, Taiwan data from Taiwan CDC, and Macau data from JHU thru Mar 10, 2023
• get_combined_table() was reworked internally to handle new data sources
• type argument for get_combined_table() was changed to accept a new type: "legacy", which returns what "Both" used to return previously (though the JHU data won't be updated and China Mainland data haven't been updated in some time)
• "Both" type for get_combined_table() now returns case and death data from get_covid_df("WHO+Primary")
• Updated docs accordingly