Add cooldown to re-enabling timer after disabling it (#3503)
Add cooldown to re-enabling timer after disabling it (#3503)

Each player has their own cooldown. The point is to prevent spamming timer
on/off to timerstall indefinitely.
jumbowhales/Pokemon-Showdown,xfix/Pokemon-Showdown,Zarel/Pokemon-Showdown,DesoGit/Tsunami_PS,Enigami/Pokemon-Showdown,svivian/Pokemon-Showdown,AustinXII/Pokemon-Showdown,Enigami/Pokemon-Showdown,xfix/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,PS-Spectral/Spectral,xCrystal/Pokemon-Showdown,Mystifi/Exiled,Lord-Haji/SpacialGaze,sirDonovan/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,AWailOfATail/Pokemon-Showdown,AustinXII/Pokemon-Showdown,xfix/Pokemon-Showdown,DesoGit/Tsunami_PS,ShowdownHelper/Saffron,Lord-Haji/SpacialGaze,QuiteQuiet/Pokemon-Showdown,xCrystal/Pokemon-Showdown,panpawn/Gold-Server,CreaturePhil/Showdown-Boilerplate,svivian/Pokemon-Showdown,Zarel/Pokemon-Showdown,PS-Spectral/Spectral,QuiteQuiet/Pokemon-Showdown,Zarel/Pokemon-Showdown,AWailOfATail/Pokemon-Showdown,AWailOfATail/Pokemon-Showdown,panpawn/Pokemon-Showdown,Lord-Haji/SpacialGaze,Mystifi/Exiled,urkerab/Pokemon-Showdown,HoeenCoder/SpacialGaze,jumbowhales/Pokemon-Showdown,svivian/Pokemon-Showdown,Sora-League/Sora,ShowdownHelper/Saffron,aakashrajput/Pokemon-Showdown,aakashrajput/Pokemon-Showdown,xfix/Pokemon-Showdown,danpantry/Pokemon-Showdown,CreaturePhil/Showdown-Boilerplate,svivian/Pokemon-Showdown,QuiteQuiet/Pokemon-Showdown,svivian/Pokemon-Showdown,CreaturePhil/Showdown-Boilerplate,HoeenCoder/SpacialGaze,Sora-League/Sora,aakashrajput/Pokemon-Showdown,HoeenCoder/SpacialGaze,Enigami/Pokemon-Showdown,jumbowhales/Pokemon-Showdown,xfix/Pokemon-Showdown,ShowdownHelper/Saffron,HoeenCoder/SpacialGaze,PS-Spectral/Spectral,DesoGit/Tsunami_PS,AustinXII/Pokemon-Showdown,Mystifi/Exiled,Sora-League/Sora,Enigami/Pokemon-Showdown,urkerab/Pokemon-Showdown,urkerab/Pokemon-Showdown,panpawn/Gold-Server,danpantry/Pokemon-Showdown,xCrystal/Pokemon-Showdown,panpawn/Pokemon-Showdown,panpawn/Gold-Server