Simple positioner

[Topvennie]

• Adds the required classes / interfaces to be able to support multiple positioners.
• Adds an example positioner

Closes #109

[FKD13]

I would do this like this

Suggested change

	@Getter @Setter
	public class Position {
	private int teamId;
	private float progress; // Progress of the lap. Between 0-1
	private float speed; // Current speed. Progress / second
	public Position(int teamId) {
	this.teamId = teamId;
	this.progress = 0;
	this.speed = 0;
	}
	}
	@Getter @Setter
	public class Position {
	private int teamId;
	private float progress = 0; // Progress of the lap. Between 0-1
	private float speed = 0; // Current speed. Progress / second
	public Position(int teamId) {
	this.teamId = teamId;
	}
	}