Add hud config presets option
As an alternative to #300 and #1140, introduce some predefined "presets" that could be used for quickly adjusting the main HUD option, in a similar fashion as what’s done for gfx options.
This would be useful to set blood, bobbing, and other visual effects.
- standard (all cvars to default)
- recommended (good for most players - no bobbing, no blood flash, good default crosshair, etc)
- light (remove everything that isn’t necessary)