Added missing file to csproj
Added missing file to csproj

LaserHydra/Oxide,ApocDev/Oxide,MSylvia/Oxide,ApocDev/Oxide,bawNg/Oxide,Nogrod/Oxide-2,Visagalis/Oxide,Nogrod/Oxide-2,LaserHydra/Oxide,MSylvia/Oxide,Visagalis/Oxide,bawNg/Oxide