Offer spatial data as sf object

[pratikunterwegs]

This issue is to request that the Colombia administrative region spatial data should be provided as sf objects.

The advantages are that sf objects play well with Tidyverse functions and packages including {dplyr} and {ggplot2} allowing easy subsetting and plotting; {sf} is the preferred package for modern spatial data science in R, and is taught in texts such as Geocomputation with R

sf objects can also be handled by {spdep}, and {spdep} depends on {sf}, so most users will already have it installed.

[juan-umana]

Hello @pratikunterwegs sp objects will be replaced by sf as requested. Initially we select sp to avoid the need of Rtools in some of our functions but now it will be included. Nevertheless, all data (including spatial) will be accessed through ColOpenData in the future, so changes will be done there first.

[pratikunterwegs]

Sounds good!