v0.1.4: Add county_name to count_fcds() (#86)

Added county_name argument to count_fcds() that adds the county into the count groups. This value can be a vector of counties, or TRUE to include all counties in the source data. Alternatively, if the value is "moffitt" then the counts are filtered to counties in Moffitt's catchment area. This deprecates the moffitt_catchment argument (#83).

2019 FCDS Release

• Updated the FCDS import recoding specification for the 2019 FCDS release.

• Added fcds_recoding() to access and specify previous versions of the FCDS recoding specification.

• Added year_group_levels to complete_year_groups() to allow for custom year groups. Mostly for testing because the year groups change based on the FCDS release year.

• Updated built-in population and example data.