Cannot parse a geometry-only shapefile without a DBF

[michaelkirk]

A user in discord reported not being able to process a shapefile because they didn't have a .dbf file.

I think we should be able to parse such a datasource, provided there's a .shp file, and just treat it as having empty properties while iterating over the geometries.

thread 'open_shp_file' panicked at 'called Result::unwrap() on an Err value: MissingDbf', src/main.rs:256:19
stack backtrace:
   0: rust_begin_unwind
             at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:584:5
   1: core::panicking::panic_fmt
             at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/panicking.rs:142:14
   2: core::result::unwrap_failed
             at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/result.rs:1814:5
   3: core::result::Result<T,E>::unwrap
             at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/result.rs:1107:23
   4: geogcn::open_shp_file
             at ./src/main.rs:256:15
   5: geogcn::open_shp_file::{{closure}}
             at ./src/main.rs:249:1
   6: core::ops::function::FnOnce::call_once
             at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/ops/function.rs:248:5
   7: core::ops::function::FnOnce::call_once
             at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/ops/function.rs:248:5
note: Some details are omitted, run with RUST_BACKTRACE=full for a verbose backtrace.

[pka]

I wonder whether GDAL supports this. But +1 from me, anyway.