BloombergLP::baltzo::DataFileLoader::isPlausibleZoneinfoRootPath

Return true if there currently exists a directory at the specified file‐system path that appears to contain Zoneinfo time‐zone information files. This method verifies (at a minimum) that path is a valid directory, and contains files for a subset of common time‐zone identifiers, but does not guarantee path is currently (or will remain) a correctly configured Zoneinfo database containing a complete set of time‐zone data.