Removed NGenerics from nuget script.
Removed NGenerics from nuget script.

wieslawsoltes/Perspex,MrDaedra/Avalonia,SuperJMN/Avalonia,wieslawsoltes/Perspex,jkoritzinsky/Perspex,MrDaedra/Avalonia,jkoritzinsky/Avalonia,wieslawsoltes/Perspex,DavidKarlas/Perspex,AvaloniaUI/Avalonia,OronDF343/Avalonia,wieslawsoltes/Perspex,AvaloniaUI/Avalonia,grokys/Perspex,jazzay/Perspex,AvaloniaUI/Avalonia,jkoritzinsky/Avalonia,akrisiun/Perspex,susloparovdenis/Perspex,SuperJMN/Avalonia,wieslawsoltes/Perspex,SuperJMN/Avalonia,AvaloniaUI/Avalonia,OronDF343/Avalonia,jkoritzinsky/Avalonia,jkoritzinsky/Avalonia,jkoritzinsky/Avalonia,AvaloniaUI/Avalonia,tshcherban/Perspex,danwalmsley/Perspex,SuperJMN/Avalonia,kekekeks/Perspex,SuperJMN/Avalonia,SuperJMN/Avalonia,AvaloniaUI/Avalonia,susloparovdenis/Avalonia,grokys/Perspex,SuperJMN/Avalonia,jkoritzinsky/Avalonia,kekekeks/Perspex,AvaloniaUI/Avalonia,punker76/Perspex,susloparovdenis/Perspex,Perspex/Perspex,Perspex/Perspex,wieslawsoltes/Perspex,susloparovdenis/Avalonia,wieslawsoltes/Perspex,jkoritzinsky/Avalonia