codec 3.0.0

Version 3.0.0 of CoDEC introduces breaking changes to the way CoDEC data is saved and read, but not to the underlying CoDEC data specifications. The pins package can now be used to read CoDEC data tables from the online CoDEC-specific pin board hosted on GitHub. More details below:

• Use pins for writing and reading to/from a CoDEC board (codec_board()) available online instead of using dpkg to read from releases online
• Objects are now codec_tbl (codec tables), and the functions are as_codec_tbl(), read_codec(), and codec_list()
• Versions of the codec board can be defined using codec_board() based on GitHub release tags for the codec package
• New function write_codec_pin() to be used by developers to update CoDEC board with pinned CoDEC tables; instead of using GitHub releases, data are tracked in the assets/data/ folder in the online repository (as json pins); in addition to writing the codec_tbl metadata, an internal function (sesh()) is used to capture key details about the R session that was used to create the codec_tbl
• Updated codec_interpolate() and codec_as_sf() to better support year and month columns
• Simplified online data commons article to be standalone html document
• Updated some geomarker methods and metadata for different CoDEC tables; removed voter_participation
• Created internal data object (codec_latest_annual) that is all CoDEC data harmonized to the latest annual values at 2020 tract geographies (if data is at monthly level, then last complete year is averaged and renamed with monthly. This itself is a codec_tbl object with metadata and names changed to reflect the latest annual harmonization.