Reads annotations for a single sample from the database and writes a
MATLAB-compatible annotation file using iRfcb::ifcb_create_manual_file.
Requires Python with scipy.
Examples
if (FALSE) { # \dontrun{
db_path <- get_db_path("/data/manual")
export_db_to_mat(db_path, "D20230101T120000_IFCB134", "/data/manual")
} # }