Crosshair-fix

For [[Counter-Strike 1.6|GoldSrc:Mod:cstrike]] HLAE auto-enables the Crosshair fix by default. The fix prevents unwanted cross hair cool-downs and removes capture frame-rate dependency.

The fix can be disabled or adjusted using [[__mirv_cstrike_ch_fps|GoldSrc:__mirv_cstrike_ch_fps]].