Log message:
(geography/R-reproj) import R-reproj-0.7.0

Transform coordinates from a specified source to a specified target
map projection. This uses the 'PROJ' library directly, by wrapping the
'PROJ' package which leverages 'libproj', otherwise the 'proj4'
package. The 'reproj()' function is generic, methods may be added to
remove the need for an explicit source definition. If 'proj4' is in
use 'reproj()' handles the requirement for conversion of angular units
where necessary. This is for use primarily to transform generic data
formats and direct leverage of the underlying 'PROJ' library. (There
are transformations that aren't possible with 'PROJ' and that are
provided by the 'GDAL' library, a limitation which users of this
package should be aware of.) The 'PROJ' library is available at
<https://proj.org/>.