gridbr.data v0.1

• Release of 'gridbr.data' v0.1 on GitHub with the following data sets:
  • gridbr_500KM
  • gridbr_100KM
  • gridbr_50KM
  • gridbr_10KM
  • gridbr_5KM
  • gridbr_1KM
  • gridbr_200M
  • gridbr_urban