Math/Utils - various cleanup and deprecations/moves

- FIX/CHANGE - Math.wrapAngle over radians; it would convert radians to degrees
  - No internal code relies on unexpected the radians-to-degrees behavior

- Moved additional methods over to ArrayUtils, only marked deprecated in Math

- Removed some private annotations; e.g. linear / factorial public, but bernstein / catmullRom still protected

- Marked additional duplicates deprecated; e.g linearValue, angleLimit

- Documentation updates

- Fixed some accidental "Utils.Arrays" usage (oops!)

- Bumped deprecations from 2.1.4 to 2.2.0

Author: pnstickne