Fix issue where team names could get placed in the wrong column when exporting a file scoresheet (#82)
Add new server setting to disable the buzz queue, so only one buzz is recognized. Players whose buzz wasn't recognized must buzz in later after the reader judges the answer.
Added commands to set this setting (!enableBuzzQueue, !disableBuzzQueue)
Upgrade various libraries to the latest version (Discord.Net, EF Core, Serilog, Moq)