ropensci/FedData: FedData version 3.0.0 CRAN release

This is the 3.0.0 CRAN release of FedData. This is a major release, with breaking changes in several functions.

Here is a rundown of major changes (as reflected in the package NEWS.md file):

• All get_*() functions now return sf or raster objects.
• Changed SDA_query() to soils_query() to avoid namespace masking with SoilDB.
• Added get_nass_cdl() to retrieve the NASS Cropland Data Layer
• Updated get_daymet() to pull from ORNL WCS, and fixed bug in Issue #49
• Fixed issue where soils_query() was only returning first SSURGO study area (Issue #51)
• Fixed issue where date parsing was USA-specific by leveraging lubridate::parse_date_time (Issue #61)
• get_ssurgo() now saves in the GeoPackage file format
• get_nhd() now access ESRI web services. Users can optionally get data from NHDPlus.
• get_nlcd() now provides data in native CRS (CONUS Albers), rather than web-mercator (Issue #77) by pulling from self-hosted Cloud-Optimized GeoTiffs.
• Issue #88 identified an issue with GDAL versions prior GDAL 3 reading COGs using the vsicurl functionality in GDAL. Accordingly, FedData3 requires GDAL >= 3.0.0.
• Added Mesa Verde National Park as exemplar region, and removed use of paleocar package.
• get_ned() now pulls from USGS NED Cloud-Optimized GeoTiffs available at https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/.