Lays out a complete municipality-by-date skeleton with
make_skeleton_date(). Merges the raw weather onto that skeleton.
Aggregates it up to county and to nation. Aggregates the whole lot up again
to ISO year-week. The action formats both granularities as
csfmt_rts_data_v2, stacks them, and writes them to
anon_example_weather_data. The write replaces whatever was there.
See also
weather_clean_data_data_selector(), which produces this action's
data argument, and make_skeleton_date() for the skeleton it starts
from. cs9example has no vignettes of its own; how cs9 pairs an action with
a data selector is documented in cs9::SurveillanceSystem_v9.
Other cs9 task actions:
weather_download_and_import_rawdata_action(),
weather_export_plots_action()
