Stratego player movement contract

[brian-lc]

Overview

Create a minimal contract to interface with the browser. Four players join a gameboard dApp and update player piece positions. As positions change the browser sends player piece movement information to this contract. It also reads movements and reports them back to a player.

Reference

• Mural
• Previous Issue

Assumptions

• The message bus can be stubbed out for now
• The contract will be able to communicate with the message bus contract when it's ready
• It will only work with four players
• It will be called by the web dApp

Acceptance

• It accepts player, piece color, and position
• It provides all player moves as events