improve kadlu configuration interface
this merge replaces the old method of configuration:
from kadlu import data_util
data_util().era5_cfg(key="TOKEN_HERE", url="URL_HERE")with a new version that removes the data_util() class altogether:
kadlu.era5_cfg(key="TOKEN_HERE", url="URL_HERE")I think the syntax for data_util().era5_cfg() wasn't very intuitive, its not always clear that brackets need to be included after data_util(). So this minor version update replaces the need for that entirely, hopefully being more intuitive to use for users. I've updated the version in setup.py to 2.1.0 accordingly