Brighter emergency lights (tcc_elsvisuals)

Emergency lightbars look brighter and coronas show from farther away. The resource does this while the game runs. It does not replace your visualsettings.dat.

• On by default. Type /elsvisuals off to turn it off or /elsvisuals on to turn it back on. Your choice is saved on your PC.
• /elsvisuals on its own shows whether it is on (F8 lists each value).
• If you use a graphics mod (NVE, QuantV, VisualV, Redux...): the resource reads your mod's values first and only raises a value that is lower than the server's minimum. It never makes anything dimmer. Turning it off puts your mod's values back.
• Side effect: other glowing vehicle parts, such as taxi roof signs, get brighter too.

Values used (minimums): night emissive 30 (vanilla 6), day emissive 40 (vanilla 15), siren SpecularFade 30, ShadowFade 50, car corona BeginEnd 450, CutoffStart 420, CutoffEnd 450 (vanilla about 300).