SYSML21 — Update to Representative Notation tables for connecting to Payload Parameters of Send and Accept Actions

In Table 15 of the Representative Notation Tables, the row labeled Accept and Send Action Flow includes a model fragment that uses a combination of a succession and a binding connection to connect to the input payload parameter of a send action and from the output payload parameter of an accept action. This issue recommends adding another example of a common pattern that replaces the succession and the binding connection with a succession flow.