[SharpDX] Fix issue #268, invalid behavior of DataStream.ReadByte (remove remaining sbyte*)
[SharpDX] Fix issue #268, invalid behavior of DataStream.ReadByte (remove remaining sbyte*)

waltdestler/SharpDX,weltkante/SharpDX,mrvux/SharpDX,sharpdx/SharpDX,fmarrabal/SharpDX,dazerdude/SharpDX,VirusFree/SharpDX,PavelBrokhman/SharpDX,davidlee80/SharpDX-1,TechPriest/SharpDX,jwollen/SharpDX,manu-silicon/SharpDX,andrewst/SharpDX,RobyDX/SharpDX,RobyDX/SharpDX,RobyDX/SharpDX,PavelBrokhman/SharpDX,TechPriest/SharpDX,weltkante/SharpDX,andrewst/SharpDX,TigerKO/SharpDX,dazerdude/SharpDX,waltdestler/SharpDX,fmarrabal/SharpDX,PavelBrokhman/SharpDX,jwollen/SharpDX,VirusFree/SharpDX,mrvux/SharpDX,wyrover/SharpDX,davidlee80/SharpDX-1,weltkante/SharpDX,Ixonos-USA/SharpDX,manu-silicon/SharpDX,mrvux/SharpDX,sharpdx/SharpDX,manu-silicon/SharpDX,Ixonos-USA/SharpDX,wyrover/SharpDX,davidlee80/SharpDX-1,sharpdx/SharpDX,dazerdude/SharpDX,TigerKO/SharpDX,waltdestler/SharpDX,davidlee80/SharpDX-1,fmarrabal/SharpDX,jwollen/SharpDX,wyrover/SharpDX,Ixonos-USA/SharpDX,waltdestler/SharpDX,VirusFree/SharpDX,PavelBrokhman/SharpDX,TigerKO/SharpDX,fmarrabal/SharpDX,manu-silicon/SharpDX,TechPriest/SharpDX,VirusFree/SharpDX,jwollen/SharpDX,TigerKO/SharpDX,dazerdude/SharpDX,TechPriest/SharpDX,andrewst/SharpDX,RobyDX/SharpDX,weltkante/SharpDX,wyrover/SharpDX,Ixonos-USA/SharpDX