Don't count DreamGates for TransitionAfterSaveState

[AlexKnauth]

So that using DreamGate instead of a SaveState can work in a similar way.

• [x] Don't split on DreamGate
• [x] Split on transition after DreamGate, from the DreamGate scene
• [x] Split on normal transition, to the DreamGate scene

[AlexKnauth]

The timing for dreamOrbs does not work out, it's not even close. I'll have to look for something else.

[AlexKnauth]

    ("GameManager entryGateName", ("GameManager", 0, &["_instance", "entryGateName"]), Type::String),

  ---
GameManager nextSceneName: "Crossroads_01"
GameManager entryGateName: "dreamGate"
GameManager gameState: 6
hero_ctrl transitionState: 1
  ---