all files in packs\DX11

VVVV.DX11.Core.csproj && VVVV.DX11.Lib.csproj
  >> build path change to packs\DX11\core\

VVVV.DX11.Factories.csproj
  >> build path change to packs\DX11\factories\

>> so all DX11 files in packs\DX11\