List the standard maps available to download
Value
a vector of map names
Examples
# example code
listStandardMaps()
#> [1] "WD11" "WD19" "LSOA11" "MSOA11"
#> [5] "DZ11" "CA19" "HB19" "LHB19"
#> [9] "CTYUA19" "LAD19" "LAD20" "CCG20"
#> [13] "NHSER20" "PHEC16" "CTRY19" "LGD12"
#> [17] "OUTCODE" "GBR_ISO3166_2" "GBR_ISO3166_3" "GOOGLE_MOBILITY"