Creates the config object which gets passed onto dataset_process. The config list contains
the subset of definitions and unit conversions for those traits for a each study.
dataset_configure is used in the remake::make process to configure individual studies mapping the
individual traits found in that study along with any relevant unit conversions
and definitions. dataset_configure and dataset_process are applied to every study
in the remake.yml file.
dataset_configure(filename_metadata, definitions)List with dataset_id, metadata, definitions and unit_conversion_functions
if (FALSE) { # \dontrun{
dataset_configure("data/Falster_2003/metadata.yml", read_yaml("config/traits.yml"))
} # }