remove compact() from arc_open()

[JosiahParry]

Checklist

• [x] update NEWS.md
• [x] documentation updated with devtools::document()
• [x] devtools::check() passes locally

Changes

Per request of @elipousson, remove compact() around fetch_layer_metadata() so that all properties, including NULL ones, are returned from arc_open().

library(arcgislayers)

"https://geodata.md.gov/imap/rest/services/Transportation/MD_Transit/FeatureServer/1" |> 
  arc_open() |> 
  length()
#> [1] 56

"https://geodata.md.gov/imap/rest/services/Transportation/MD_Transit/FeatureServer/9" |> 
  arc_open() |> 
  length()
#> [1] 56