wk 0.3.3

• Fixed WKB import of ZM geometries that do not use EWKB
• Added xy(), xyz(), xym() and xyzm() classes to efficiently store point geometries.
• Added the rct() vector class to efficiently store two-dimensional rectangles.
• Fixed the CRAN check failure caused by a circular dependency with the wkutils package.
• Added S3 methods to coerce sf objects to and from wkt(), wkb() and wksxp().

wk 0.3.2

• Fixed EWKB output for collections and multi-geometries that included SRID (#3).
• Fixed CRAN check errors related to exception handling on MacOS/R 3.6.2.

wk 0.3.1

• Added a NEWS.md file to track changes to the package.