public IncomingMessageEnvelope(SystemStreamPartition systemStreamPartition,
Constructs a new IncomingMessageEnvelope from specified components.
systemStreamPartition - The aggregate object representing the incoming stream name, the name of the cluster
from which the stream came, and the partition of the stream from which the message was received.
offset - The offset in the partition that the message was received from.
key - A deserialized key received from the partition offset.
message - A deserialized message received from the partition offset.