Looks Silvie

Mostly performance and quality of life improvements:

• added button to disable camera feed to improve fps for low performance machines
• reduced the number of lights, added toggles for low performance machines
• turned off skybox
• improved reliability for all three animations
• made animations more fluid and less robotic
• added "auto female resize" button for easier swapping of female
• added intro scene with simple pose to make swapping either character easier
• added a start button so animation doesn't start automatically
• added more variability in futa silvie's movements