[feature/contract] Elite Invite NFT contract and game contract distribution

[KrumpyLumpkins]

System to operate per the doc.

• Elite Invite has single category (epoch).
• Supply to be determined ~14 November.
• Single invite awarded to each of the top 50% players up to a max no. tickets issued per game (max number determined by supply).
• Single invite required as payment to access a single Elite series game.