Document configuration options

[miparnisari]

Can you please add comments to each Configuration parameter explaining what it does and what are the recommended values?

aws-dax-go/dax/internal/client/cluster.go

Lines 59 to 75 in 264dfde

	type Config struct {
	MaxPendingConnectionsPerHost int
	ClusterUpdateThreshold time.Duration
	ClusterUpdateInterval time.Duration
	IdleConnectionReapDelay time.Duration
	ClientHealthCheckInterval time.Duration
	HostPorts []string
	Region string
	Credentials *credentials.Credentials
	DialContext func(ctx context.Context, network string, address string) (net.Conn, error)
	connConfig connConfig
	SkipHostnameVerification bool
	logger aws.Logger
	logLevel aws.LogLevelType
	}

For example, MaxPendingConnectionsPerHost is renamed to maxConcurrentConnAttempts here, and the default is 10. What are the consequences if we increase this to 10000? Etc...