Dani Tulp

Add support for open telemetry collectors

1

To add support for more tracing back-ends it would be great if benthos could support [OpenTelemetry collectors](https://opentelemetry.io/docs/collector/). It would allow services like datadog (which is of interest for me 😛...

Should populate the following in amqp_1 https://docs.oasis-open.org/amqp/core/v1.0/os/amqp-core-messaging-v1.0-os.html#type-application-properties. Azure Service Bus or Event Hub use fields in this to provide deduplication. Internally we use it for routing messages to proper handlers...

In Laravel there's quite a neat assertion on the Http client called `assertSentInOrder`, it kind of does what it says on the tin, it allows you to check that the...