Changed: Moved Chat sending options down below General Chat options.

Added: Headers for the viewer location inputs.

Added: First attempt at a timeline feature for animations. Allows fast forwarding and reversing animations to any given point in time.

Fixed: Reverted water reflection generation back to pre-EEP to fix reflection clipping issues, camera rotation issues and several other smaller issues.

Changed: As per suggestion, make Edit floater color pickers use the alpha overlay to reduce confusion of the current color.

Changed: Improved alpha overlay for color pickers to make it better visible across all shapes of color pickers.

Added: Buttons to open the cache, log and chatlog folders directly to make navigating and retrieving logs from users easier.
Added: Button to delete all Viewer logs.
Changed: Moved Chat log location from Privacy to Viewer tab.

Fixed: Saving presets with the same name as default presets saves the unmodified default preset instead.
Fixed: Loading presets named exactly like default presets loads the original default preset instead of the user created one.

Added: Ability to override clamping to increments in sliders, allowing to input any value inbetween increments into the text field.

SL-13521 Add avatar appearance lighting to deferred lighting path

Approved-by: Andrey Kleshchev
Approved-by: Michael Pohoreski

SL-13406 fix an end-scope enable error in glow rendering

SL-13406, glow disable no longer breaks rendering

Approved-by: Michael Pohoreski

Merge master v6.4.6 into DRTVWR-497 (VS2017)