Optional cutscenes

[Ricky-James]

Add support for Nemesis and Penance categories.
This includes any bug fixes for revisiting zones, as well as skipping the Omega Ruins and Sunken Cave cutscenes.

[Ricky-James]

Thunder plains reset fixed in 1.1.0
This was the only known issue with returning to old areas, meaning Nemesis/Penance should be mostly supported now (albeit untested).
Additional cutscenes still need removing for full support though:

• Omega Ruins cutscenes
• Dark Aeon cutscenes
• Yojimbo/Lulu cutscene
• Penance unlock cutscene
  (This may not be an exhaustive list)

[Ricky-James]

Omega Ruins intro scene added as of 1.2.1 (for NSG)

Currently required:
Dark Aeon cutscenes (typically short intros)
Sunken Cave cutscenes (inside)
Penance unlock
Baaj Temple revisit (Geosgaeno and Anima acquisition)
Remiem Temple (conversations and tutorials with Belgemine)