initial commit.
remove not required doctrine/orm in dev deps.
rename Setup to Process.
initial idea of coordinator.
rename Process definition to ProcessScenario, tweak controller.
introduce separate session bag for storing namespaced flows data, make this crazy stuff working.
tweak readme.
tweak readme, add some examples.
clean ups and some refactoring.
add initial tests.
Added tests for process classes
Added implementation changes, fixed to make test pass
Added session tests
Added event tests
Allow ProcessContext::complete() to pass the next step to forward to.
Made sure users can only revisit steps from their history.
Cleanup after code review.
Some more cleanup.
Introduced the ActionResult class to make forwardAction() more consistent.
Allow for step completion in display step