Registering a hit on a minion

[bzns]

• When a /games/{gameId)/{token} PATCH request is received based on a minion being hit, the instance of the hit minion will be updated by deducting health points
• The updated value will be returned to the client during its next /games/{gameId} GET request

Time estimate: 5h
This task is part of user story #21

[Thahit]

cancelled