scalar array not displayed properly

[amanand]

please update the function handleOnePacket to display scalar array datatype as well.

also decimal64 datatype is being added (20.4 onwards), so please pick the latest telemetry.proto and add support for displaying it as well something like below:
case *na_pb.KeyValue_DecimalValue:
s += fmt.Sprintf(" decimal64_value: digits=%d precision=%d\n", value.DecimalValue.Digits, value.DecimalValue.Precision)