Option to filter geometries in '$ fio cat --bbox/--bounds' by '--dst-crs'

[geowurster]

An option like $ fio cat --bounds w s e n --bounds-crs <crs> --dst-crs <crs> would allow for filtering prior to reprojection, like $ ogr2ogr -spat w s e n -spat_srs <crs>.

See #210 for a discussion about standardizing bounding boxes as --bounds w s e n rather than --bbox w,s,e,n.