public static long fnv1a64(byte... data) {
    return fnv1a64(FNV1_64_INIT, data);
  }
Computes the hash using the FNV-1a 64-bit hash function.

@param data the data to generate the hash for
@return the hash
planetiler-core/src/main/java/com/onthegomap/planetiler/util/Hashing.java