Server's default prediction cap is 150ms.
Player can now alter the prediction milliseconds cap with a command.
- MUTATE GETPREDICTION
** Informs the player of the server's prediction cap and the client's forced prediction
** values if he has any.
- MUTATE PREDICTION
** Informs the client on how to force a prediction cap
- MUTATE PREDICTION _PING_
** Force prediction cap, replace _PING_ with a value.
** IF VALUE = 0 or DISABLE: prediction is disabled
** IF VALUE = -1 or DEFAULT: prediction is handled by server settings
** ELSE, USE VALUE as milliseconds cap.