Acanthiza/envImport: Combine Disparate Data Sources

Tools to help with data preparation for varied environmental analyses. General workflow is `get_`, `make_` then unite. `get_` functions retrieve data from external data sources, always saving results to file and with an absolute minimum of changes to raw data. `make_` functions mung the results from `get_`. Data source specific munging options are in here. Finally `unite_data_sources` using a data map.

install.packages("remotes")
remotes::install_github("Acanthiza/envImport")