ZMAP read/write support.
ZMAP is a simple 10 column CSV file (technically TSV) format for basic catalog data (see [Wiemer2001]).
The ObsPy Development Team (email@example.com), Lukas Heiniger
GNU Lesser General Public License, Version 3 (https://www.gnu.org/copyleft/lesser.html)
Private functions are mainly for internal/developer use and their API might change without notice.
Checks whether a file is ZMAP format.
Reads a ZMAP file and returns an ObsPy Catalog object.
Writes a ZMAP file.