matchmaking utility package

[mashiike]

Create matchmaking package
Provides utilities for matchmaking.

Basically, the following interface is considered.

type Element interface {
  Rating() rating.Rating
  MemberCount() int
}

Provide a Queue that can store anything that satisfies this interface.

When Queue reaches the specified number, it tries to return the combination of the match via the channel.

The algorithm is considered to be an annealing method or one using the Gale-Shapley algorithm.