etn 2.1.0

This release adds a new function write_dwc() and fixes some issues in unit tests. It also includes some other minor fixes to internal function use and documentation.

What's Changed

• Fix #240: use :: over importFrom by @peterdesmet in #241
• Add funder and use default README.Rmd by @peterdesmet in #247
• Fix tests by @peterdesmet in #253
• Add write_dwc() function by @peterdesmet in #257
• Update return value for write_dwc() by @peterdesmet in #269

Full Changelog: v2.0.0...v2.1.0