Player
A Player contains a unique id and a elo rating.
Example
import { Player } from 'teslo'
const player = new Player('1', 1000)API
class Player {
constructor(id: string, elo: number)
static create(id: string, elo: number): Player
getExpectedResult(opponentElo: number): number
calculate(opponentElo: number, won: boolean, kFactor: number): number
}