Workflow tester

Java

mvn clean install
diagrid dev run -a app1 -- java -jar target/workflow-app-0.0.1-SNAPSHOT.jar --port=5001

then

diagrid dev run -a app1 -- go run ./tester/main.go

Golang

diagrid dev run -a app2 -- go run ./workflow/main.go

then

WF_NAME=OrderProcessingWorkflow diagrid dev run -a app2 -- go run ./tester/main.go