Event data port prototype bindings created by graphical editor are not serialized correctly

[philip-alldredge]

Summary
Event data port prototype bindings created by grpahical editor are not serialized correctly. When creating an event data port prototype binding as done in the PrototypeEndToEndTest, the test fails because the binding is serialized as eventData port. Note that in the current master branch, the test fails before it gets to that point due to the dialog labeling changes. Once #2833 is merged, the test fails due to the serialization issue.

Expected behavior
Event data port feature prototype bindings created with the graphical editor should serialize as event data port.

Actual behavior
Event data port feature prototype bindings created with the graphical editor serialize as eventData port.

Steps To Reproduce
Run the PrototypeEndToEndTest or create a event data port prototype binding with the graphical editor.

Screenshots
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Desktop (please complete the following information):

• OSATE Version: Master with Fix minor graphical editor issues. #2833.
• Operating System: Windows 10