Switch to the usbdk backend for libusb on Windows

The usbdk backend is the only libusb backend that has official support
for isochronous transfers (which are required for Wii Speak,
microphones and cameras). And it's actively developed and maintained.

Externals/libusb/libusb_static_2013.vcxproj

@@ -52,7 +52,7 @@
     <ClCompile Include="libusb\sync.c" />
     <ClCompile Include="libusb\os\threads_windows.c" />
     <ClCompile Include="libusb\os\windows_nt_common.c" />
-    <ClCompile Include="libusb\os\windows_winusb.c" />
+    <ClCompile Include="libusb\os\windows_usbdk.c" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="msvc\config.h" />
@@ -65,7 +65,7 @@
     <ClInclude Include="libusb\version_nano.h" />
     <ClInclude Include="libusb\os\windows_common.h" />
     <ClInclude Include="libusb\os\windows_nt_common.h" />
-    <ClInclude Include="libusb\os\windows_winusb.h" />
+    <ClInclude Include="libusb\os\windows_usbdk.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">

Externals/libusb/msvc/libusb_usbdk_static_2015.vcxproj

@@ -159,4 +159,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>

Source/VSProps/Base.props

@@ -51,7 +51,7 @@
       <AdditionalIncludeDirectories>$(ExternalsDir)xxhash;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <AdditionalIncludeDirectories>$(ExternalsDir)zlib;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;_CRT_SECURE_NO_DEPRECATE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <PreprocessorDefinitions>USE_UPNP;__LIBUSB__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>USE_UPNP;USE_USBDK;__LIBUSB__;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PreprocessorDefinitions>PSAPI_VERSION=1;_M_X86=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PreprocessorDefinitions>SFML_STATIC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PreprocessorDefinitions>CURL_STATICLIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>