Rename the services and folders used for the Dynamico use-case

The following folders in the POC/Dynamico folder will be renamed:

• command-webservice → cmdendpoint
• submissions-commandhandler → cmdhandler
• reader → eventhandler
• read-webservice → readendpoint

The following docker-compose/k8s services will be renamed:

• command-webservice → dynamico-cmdendpoint
• submissions-commandhandler → dynamico-cmdhandler
• reader → dynamico-eventhandler
• read-webservice → dynamico-readendpoint