Retrieves the path to the Connectome Workbench executable from a file path that may point to the executable itself, or to the Workbench folder which contains it (i.e., "path/to/workbench/bin_linux64/wb_command" or "path/to/workbench".)
get_wb_cmd_path(wb_path)
The path to the Connectome Workbench executable
(Optional) Path to the Connectome Workbench folder or executable.