static Arguments fromJvmProperties(UnaryOperator<String> getter, Supplier<? extends Collection<String>> keys) {
    return fromPrefixed(getter, keys, "planetiler", ".", false);
  }
Returns arguments from JVM system properties prefixed with {@code planetiler.}
<p>
For example to set {@code key=value}: {@code java -Dplanetiler.key=value -jar ...}
planetiler-core/src/main/java/com/onthegomap/planetiler/config/Arguments.java