Split trader example different running modes into separate modules

Just like the Guice/Pico/Spring examples use the trader example code without duplicating it (in particular the Steps classes) but have different configurations and running modes, we could have different modules for the other non-IoC configuration modes, e.g. AnnotatedEmbedderRunner, JUnitStories, while still not duplicating the trader example code.

This would allow newcomers to get a better overview of the functionality. It would also allow to exercise this funcionality without using profiles (as is currently).