Alien Vision update for 329+

[Cr4zyy]

Alien Vision 329+ update

• Added the ability to individually colour; Marines, Aliens, Gorges, Marine Structures and Alien Structures.
• Added a Nanoshield AV highlight option, for those people who like darker AV's that cant see the Nanoshield vfx this will enable an recolour within the AV itself.
• Code updated, some improvements with inline functions and removal of old depreciated code.
• Close and Distant colours now apply to depth fog too allowing for more interesting setups.
• Ability to toggle off any of the individually colourable elements.
• A new edge option which doesnt add colour fill to entities allowing for more of an outline only style.
• Toggle a new edge math that greatly improves the rendering of edge detection in the distance, removing the "highlighted" floors and walls effect of the previous detection.
• Cleaned up parameters being sent to shader, many values no in single integers for bitshifting, also allows for the increased colour option count

https://www.youtube.com/watch?v=sWnyY7-nLdI

[Cr4zyy]

Tested a ton of settings over the weekend and had a few friends test, fixed several edge-case issues with certain settings, some optimisation and general improvements to make things look better, match colours more accurately and hopefully be more consistent across the modes.