It creates a DuckDB connection, and then it installs and loads the spatial extension
Examples
if (FALSE) { # interactive()
# load packages
library(duckspatial)
# create a duckdb database in memory (with spatial extension)
conn <- ddbs_create_conn(dbdir = "memory")
# create a duckdb database in disk (with spatial extension)
conn <- ddbs_create_conn(dbdir = "tempdir")
}
