feat(cloudwatch): add more metrics for Route53

Thank you https://github.com/aruetten for helping
us find the new metrics

closes #4053

pkg/api/cloudwatch/metrics.go

@@ -61,7 +61,7 @@ func init() {
 		"AWS/OpsWorks": {"cpu_idle", "cpu_nice", "cpu_system", "cpu_user", "cpu_waitio", "load_1", "load_5", "load_15", "memory_buffers", "memory_cached", "memory_free", "memory_swap", "memory_total", "memory_used", "procs"},
 		"AWS/Redshift": {"CPUUtilization", "DatabaseConnections", "HealthStatus", "MaintenanceMode", "NetworkReceiveThroughput", "NetworkTransmitThroughput", "PercentageDiskSpaceUsed", "ReadIOPS", "ReadLatency", "ReadThroughput", "WriteIOPS", "WriteLatency", "WriteThroughput"},
 		"AWS/RDS":      {"BinLogDiskUsage", "CPUUtilization", "CPUCreditUsage", "CPUCreditBalance", "DatabaseConnections", "DiskQueueDepth", "FreeableMemory", "FreeStorageSpace", "ReplicaLag", "SwapUsage", "ReadIOPS", "WriteIOPS", "ReadLatency", "WriteLatency", "ReadThroughput", "WriteThroughput", "NetworkReceiveThroughput", "NetworkTransmitThroughput"},
-		"AWS/Route53":  {"HealthCheckStatus", "HealthCheckPercentageHealthy"},
+		"AWS/Route53":  {"HealthCheckStatus", "HealthCheckPercentageHealthy", "ConnectionTime", "SSLHandshakeTime", "TimeToFirstByte"},
 		"AWS/SNS":      {"NumberOfMessagesPublished", "PublishSize", "NumberOfNotificationsDelivered", "NumberOfNotificationsFailed"},
 		"AWS/SQS":      {"NumberOfMessagesSent", "SentMessageSize", "NumberOfMessagesReceived", "NumberOfEmptyReceives", "NumberOfMessagesDeleted", "ApproximateNumberOfMessagesDelayed", "ApproximateNumberOfMessagesVisible", "ApproximateNumberOfMessagesNotVisible"},
 		"AWS/S3":       {"BucketSizeBytes", "NumberOfObjects"},