stateless

Packets read from PCAP create Single Burst streams with one packet.

https://github.com/cisco-system-traffic-generator/trex-core/blob/8a2002b6a0c5a4a8db997aa1da1b7bdbc2fd5aa7/scripts/automation/trex_control_plane/interactive/trex/stl/trex_stl_streams.py#L1345

This doesn't allow us to play with the Inter Packet Gap.
I suggest we change this to Multi Burst.

I catch a Exception, When I download Vaadin 16 Business Starter and copy /target/index.ts(html) to fronted dir. Then run command :

mvn jetty:run-exploded -Dvaadin.productionMode

Open browser: 127.0.0.1:8080

HTTP ERROR 500
Problem accessing /. Reason:

    Server Error

The IDEA shows Error is

java.io.IOException: Failed to load content of 
'D:\broderick\d

The OCR example which adds slack notifications should use an environment property in the project manifest instead of parameters.

https://github.com/nimbella/demo-projects/blob/bd922f8eb03e9345556ccc4f82b12b47ab61825f/ocr/project-slack-notification.yml#L12-L14

This is also needed for the Printer demo.

https://github.com/nimbella/demo-projects/blob/bd922f8eb03e9345556ccc4f82b12b47ab61825f