Reorder entities

This is easier to accomplish using arcticdatautils

An example reorganizing alphabetically

1. Metadata

doc$dataset$otherEntity <- doc$dataset$otherEntity[order(entity_names)]

2. Data files and PIDs retrieved with get_package

pkg <- get_package(adc, rm, file_names = T)
doc <- EML::read_eml(getObject(adc, pkg$metadata))
reordered <- arcticdatautils::reorder_pids(pkg$data, doc)