* remove complex curve function
* update camera easing feature to use Mathf.Pow instead
* add total camera speed steps to ViewportOptions
* change default value for max camera speed from 64 to 32
* update ViewportOptions ordering and grouping
* update string format for movement speed
* change camera move speed method to use easing curve
* add methods for inversion of Mathf.InterpEaseInOut (might have better alternative)
* add setting for easing curve degree in ViewportOptions
* update camera speed adjustments to use easing curve
* remove unused camera speed values array
* update some comments and namings
* update ViewportOptions to include new default camera settings
* update existing default settings in ViewportOptions
* extract viewport options setup into own method
* initialize new camera settings with default settings in EditorViewport