Add new data class for rule transition factories.

[katre]

Part of the fix for #13751.

[gregestren]

What does this change facilitate?

[katre]

Sorry, created an issue in github. This is part of addressing the crash when a user tries to use an attribute-only transition (like the exec transition) directly on a rule. See #13751.

[gregestren]

That makes more sense, thanks. Does something in this PR fix the crash, or is there more to come?

I'm being more pedantic than normal since we've noticed we have a lot of abstractions for how transitions are created and applied. Since this adds another abstraction, I want to ensure I understand clearly its role.

[katre]

The next commit adds a marker interface so that TransitionFactory can only be created with specified data classes (AttributeTransitionData and the new RuleTransitionData). The final commit adds a type enum and an error message when the wrong type is used.