[flawhud] Option to have Vaccinator resist icon in the middle

[Meladoom]

Just like in Toonhud.

EXAMPLE - https://images.gamebanana.com/img/ss/mods/62b87d2064daf.jpg

Maybe this should be a part of https://github.com/CriticalFlaw/TF2HUD.Editor

https://github.com/JarateKing/TF2-Hud-Reference/blob/master/2-LISTS/Filelist.md mentions HudLayout.res > HudMedicCharge

This might be the only reason why I still use Toon instead of Flaw (that looks and runs WAYYY better than Toon)