add Custom configuration

[valiner]

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[valiner]

_ No description provided. _
type Config struct {
WriteWait time.Duration // Milliseconds until write times out.
PongWait time.Duration // Timeout for waiting on pong.
PingPeriod time.Duration // Milliseconds between pings.
MaxMessageSize int64 // Maximum size in bytes of a message.
MessageBufferSize int // The max amount of messages that can be in a sessions buffer before it starts dropping them.
}

When creating an instance, support configuration config