[Build] Fix DefaultTargets for SharpDX.build
[Build] Fix DefaultTargets for SharpDX.build

RobyDX/SharpDX,dazerdude/SharpDX,sharpdx/SharpDX,RobyDX/SharpDX,mrvux/SharpDX,andrewst/SharpDX,dazerdude/SharpDX,waltdestler/SharpDX,dazerdude/SharpDX,waltdestler/SharpDX,andrewst/SharpDX,mrvux/SharpDX,mrvux/SharpDX,waltdestler/SharpDX,sharpdx/SharpDX,RobyDX/SharpDX,waltdestler/SharpDX,RobyDX/SharpDX,dazerdude/SharpDX,andrewst/SharpDX,sharpdx/SharpDX