Harmonise with kwb.pkgbuild (#12)
Fix tidyverse deprecated warnings (#13)
Add support for importing .csv files created with Umberto LCA+, v10.0.3.146 (#3) with 3 new columns ("product_name", "product_arrow", "product_flow_amount") compared to initial development version, that was based on Umberto NXT LCA (v7.1, build 7.1.13.503)
Added a NEWS.md file to track changes to the package.
see https://style.tidyverse.org/news.html for writing a good NEWS.md