Support options for Rank

[heronshoes]

Vector#rank will be introduced in v0.3.1 (#176). But;

RankOptions in C++ functions is not implemented in C GLib yet.

Current implementation is fixed as:

• Nil values are considered greater than any value.
• NaN values are considered greater than any value but smaller than nil values.
• Tiebreakers are ranked in order of appearance.
  I will request in a Red Arrow C GLib.