JON-475: add event in game

[dpinones]

When a play or discard is discounted, the event ChallengePlayer(0x07d4feee622ecab47260614e1655d5ed51275dcb6b1773f1465ada9dcdbcdc3) is emitted.

struct ChallengePlayer {
    game_id: u32,
    discards: u8,
    plays: u8
}

When energy is deducted PlayerBeast(0x22d6f7af6af6e7db9b34e6dd923e081b02fc768a2cbf906034d1189379f7a065c3) event is emitted.

struct PlayerBeast {
    game_id: u32,
    health: u32,
    energy: u8
}

When the player attacks the PlayerAttack(0x3b7323b81d8b424fbce8a32b215c387794da0df18a831a2113dc2153f821399) event is emitted.

struct PlayerAttack {
    player: ContractAddress,
    attack: u32
}

When the beast attacks the BeastAttack(0x46464e29ab42204dac77d8ec2b116f0b8b8b91b846d0e8d3db018faf556c1d964) event is emitted.

struct BeastAttack {
    player: ContractAddress,
    attack: u32
}