quick and dirty changes instead of using Melange:
- add sub-package: dynamic
- add class dynamic.Token
- add ref: FlowNode.heldTokens
- possibility to start more than one Process simultaneously ? (ex: multiple user asking to book a trip in the Travel agency ?)
- possibility to start more than one Lane simultaneously for a given Process ?
- StartEvent without incoming MessageFlow
- can be triggered anytime
- create a new token
- il existe des StartEvent (non affichés) !?