Feature: Add Options to Disable New Animations

[StormFX]

Add options and the relevant API to disable the new animations introduced in 10.1.5.

• [x] Spell Alert: Select None, Flash and Loop, Loop Only
• [x] Cast Bar: Toggle
• [x] Cooldown: Toggle (Disabled by Blizzard)
• [x] Interrupt: Toggle
• [x] Add a work around for the visual scaling of spell alerts during the transition between the start and loop animations.